Cancer is a group of diseases that start when cells begin to grow and divide abnormally instead of repairing themselves or dying when they should. These uncontrolled growths are called tumors and can form in any tissue of the body. They often get their own blood supply and can crowd out normal cells and organs, causing them to function poorly or stop working altogether. Cancer causes different symptoms in each person, depending on the type of cancer and where it starts. Some types of cancer can be cured by surgery or other treatments, while others are not. But research in recent years has transformed how cancer is and will be treated. New medicines block the blood supply that tumors need to grow, correct genetic defects that lead to cancer and help the immune system fight cancer. These are just a few of the many new options for treating cancer that doctors have now, and more are on the way. Some cancers can cause few or no symptoms, and are only diagnosed when a doctor checks for them during a medical exam or screening test, such as a colonoscopy or Pap smear. These tests are done when a person is healthy, and can find some cancers early, when they are easier to treat. Most cancers are not preventable, but there are ways to reduce your risk by taking good care of your health and getting regular screenings. This is the best way to find cancer early, when it is easiest to treat. Genetic changes can cause cancer, and these can happen at any age. These changes may be hereditary (passed on by parents) or they can happen spontaneously, for example due to an infection or exposure to chemicals or radiation. There are some things you can do to lower your chances of getting cancer, such as not smoking and eating well. You should also be aware of how your body feels and see your doctor right away if you have any unusual symptoms, such as unexplained weight loss or a persistent cough that does not go away. Cancer that has spread to other parts of the body is called metastatic cancer. It travels through the bloodstream or lymph system to other places in the body and settles there, forming new tumors. The new tumors are named for the part of the body where they first started, for example, breast cancer that has spread to the lungs is called metastatic breast cancer. Some cancers can be very difficult to treat, but doctors are always looking for new ways to improve treatment and increase the number of people who can be cured. For example, some cancers spread quickly, and new medicines can mark these cells so that the immune system can find them more easily. Other new treatments can keep cancer cells from getting the oxygen and nutrients they need to grow, or block the signals that tell them to multiply. And surgical procedures can be used to remove all or part of a tumor, as well as tissues that surround it.
Read MoreMedical is a broad term that can be used to describe many things related to health and illness, such as medical treatments, doctors and hospitals. It can also be used to refer to a particular field of study or to someone who has a medical degree. The field of medicine includes the study, diagnosis, treatment and prevention of disease. Medical professionals use medication and surgical procedures to help patients recover from illnesses or injuries. Some examples of common medical treatments include taking antibiotics, receiving physical therapy and getting stitches. Medical professionals can also prescribe medications and recommend lifestyle changes to prevent diseases from occurring in the first place. Before modern medicine, ancient peoples relied on natural remedies to treat disease. These included using plants (herbalism), animal parts and minerals. Some societies also practiced spiritual systems such as animism (the belief that inanimate objects have spirits) and shamanism. Medical studies include a wide range of disciplines such as anatomy, biochemistry, biomechanics and pharmacology. They also cover many aspects of human health including endocrinology, genetics, cytology and embryology. Other fields of study within the medical profession include epidemiology, gynecology and toxicology. Throughout history, medical science has evolved to incorporate the latest research and discoveries from other fields of study such as physics, chemistry, biology and mathematics. Physicians and other healthcare workers must have a deep understanding of these fields in order to care for their patients properly. This knowledge is often gained through medical education and training, which varies across the world. Some of the most important medical advances have been made in fields like bacteriology, physiology and anatomy. The development of vaccines, blood tests and other diagnostic tools have all helped make medical treatment more effective. Various types of medicine are practiced worldwide, with each country having its own set of standards and regulations. For example, in the United States, a doctor must complete medical school and receive a Doctor of Medicine (M.D.) or a Doctor of Osteopathy (D.O.). In the UK, most specialties have their own medical council and entrance examinations. This helps to ensure the highest level of patient safety and quality of care.
Read MoreHealth is a concept with many different interpretations, which are largely influenced by the cultural and social context in which the idea develops. The notion of health is complex and multifaceted, affecting all aspects of an individual’s life and well-being. These include mental and physical health, family, work, environment and community. This makes it difficult to define in terms of a particular disease or medical condition. The current definition of health was first established in 1948 by the World Health Organization, who defined it as “a state of complete physical, mental and social well-being and not merely the absence of disease or infirmity.” Unlike disease, which is recognizable and tangible, health is a much more nebulous concept, making it difficult to study and understand. For some people, the concept of health is centered around a healthy lifestyle and achieving balance in all areas of their lives. This includes having good nutrition, regular exercise and getting enough rest, as well as avoiding harmful habits such as smoking and excessive stress. For others, the concept of health is based on being able to pursue their own goals and aspirations, regardless of their limitations or abilities. This can be achieved by balancing their lives through various means, such as support from friends and family or medical treatment for any health conditions that they may have. In addition, some people view their health as a means of adapting to new challenges and situations. For example, if someone becomes allergic to a certain substance, this can cause them to develop a range of symptoms that may range from a mild rash to anaphylactic shock and even death. Often, this is considered to be a normal part of the body’s response to an allergen, and it can be seen as a positive sign that the body is working in a way that is appropriate to the person’s environment. The definition of health that is most important to the individual depends on their values and beliefs. However, all concepts of health are subjective and contested, as they are constantly being challenged, revised and redefined by the individuals who use them. This is particularly true in the digital society, where different ideas on what constitutes good health coexist and dynamically evolve. This makes it extremely important for everyone to be aware of their own conception of health and how it relates to the broader health discourse. By understanding the complexities of this subject, it is possible to make more informed decisions about health and how it should be promoted in our modern society.
Read MorePharmacy is the science and practice of discovering, producing, preparing, dispensing, and monitoring medications, aiming to ensure their safe, effective and affordable use. It is a cross-disciplinary science that links health sciences with pharmaceutical sciences and natural sciences. As the healthcare industry evolves, the way in which patients receive their medication has changed as well. While traditional brick-and-mortar pharmacies are still a vital part of patient care, online pharmacies have emerged as an alternative that allows customers to receive their prescriptions without ever leaving the comfort of their homes. In addition, virtual services can provide a more cost-effective solution for individuals who are paying out-of-pocket for their medications. In order to help you get the most out of your prescriptions, pharmacists are trained in a variety of areas including: Verifying and interpreting your doctor’s medication orders. This includes checking your medication’s dosage, confirming it doesn’t interact with other medicines you take and explaining what to expect from each medicine. Providing expert health advice. This may include explaining how to properly use and store medications, helping you set up an exercise or diet plan and advising on the best way to manage your condition. Offering vaccinations. This can include the flu shot, as well as various other vaccines. Creating customized medication mixes (compounding). This involves mixing ingredients to create a unique dose of your medication. It can also include delivering medication via intravenous therapy, an injection or a syringe. Assisting with chronic disease management. This includes working with your doctor to develop a comprehensive treatment plan, ensuring you’re receiving the right dosages at the right time and helping you to understand what to do in an emergency situation. Consulting with your doctor to review and update your prescriptions. This can be to help you achieve the best results from your treatment or to explore alternative therapies. Educating your family and friends on how to best take your medicines. This may involve creating tailored patient leaflets and providing training on how to self-manage your condition. The aging population is increasing the demand for pharmacy services, especially long-term care and geriatric pharmacists. Older patients often have complex drug regimens that require careful oversight. In addition, these individuals have increased medication risks, such as interactions with new medications or side effects from long-term use of older medicines. In summary, the pharmacist is an important member of the healthcare team and their skills are widely used in hospitals and other health facilities. However, there are many areas of uncertainty about what exactly a pharmacist does on a day-to-day basis and how this knowledge is conveyed to the public. As such, this article is intended to provoke discussion on this topic and to begin the process of gaining clarity in what we mean when we refer to a ‘pharmacy’. This is essential to the development of a more robust model for pharmacy practice locally and internationally. We hope it can act as a catalyst for enhancing the level of clarity in the definition of pharmacy as a profession, which in turn will benefit all aspects of healthcare.
Read MoreCancer is a disease that occurs when cells in the body begin to grow out of control and destroy or invade other healthy cells. These abnormal cells may also spread to other parts of the body through the blood or lymph systems. This is called metastasis. Cancer can be found almost anywhere in the body and it can affect any organ or tissue. Cancer can be a very serious disease and it can kill. However, thanks to advances in treatment and detection, many cancers can now be cured. This PDQ cancer information summary has current information about the prevention of cancer. It is based on an independent review of the medical literature. It is written for patients, families, and caregivers. It does not give formal guidelines or recommendations for making health care decisions. We do not know what causes most types of cancer, but we do know that certain characteristics—called risk factors—can increase a person’s chance of getting the disease. These factors include genetic changes, lifestyle choices (such as smoking and sun exposure), and exposure to chemicals that can cause DNA damage. Inherited gene mutations play a role in 5 percent to 10 percent of cancer cases. The most common cancers are nonmelanoma skin cancer, breast cancer, lung cancer, and colorectal cancer. These cancers can be prevented by practicing safe sun use and having regular screening tests for early detection. Many signs and symptoms of cancer are similar to those caused by other illnesses, such as the flu. But if you have persistent and unusual symptoms, it is important to talk with your doctor. As cancer grows, it can put pressure on organs, nerves, and blood vessels. This can lead to pain, tiredness, and other problems. The cancer may also make a person’s immune system work poorly. The cells may release chemicals that change the way the body works, causing other symptoms. When cancer cells break free of their normal restraints on growth, they can build up into a mass or tumor. The cells may stay in the tissue where they started (a condition called local invasion or invasive cancer), or the cells can travel through the blood and lymph to settle in other tissues in the body, where they become a new tumour. These new tumours are called secondary cancers or metastatic cancers. The best way to protect against cancer is to avoid tobacco and UV radiation and to have routine screenings for these diseases. It is also very important to eat a healthy diet and get enough exercise, and to keep up with vaccinations. Getting regular checkups is especially important for people over age 50. These visit can help detect cancer in its earliest stages, when it is easier to treat. This PDQ cancer information summary is provided by the National Cancer Institute (NCI), part of the National Institutes of Health. This summary is updated periodically and does not contain all available information on this subject. Additional information is available on the NCI website.
Read MoreMedical is an academic field that studies the human body and diseases. The field is based on science but also includes elements of art and philosophy. For example, a doctor who practices a form of traditional medicine may have an appreciation for the role of religion in healing, while the study of anatomy and molecular biology are based on scientific principles. The discipline is divided into many subfields, including anthropology, bacteriology, epidemiology, genetics, pharmacology and pathology. Some of these fields have been around for centuries while others have been developed in recent times, such as veterinary science which separated from medical practice in 1761 and modern biomedical research that replaced early Western traditions based on herbalism and the theories of the four humours. Students in this field learn a huge amount of information, which must be memorized. There are some proven study techniques that can help medical students retain more of this information and pass their tests. These include studying one topic at a time, interleaving topics, and using practice questions to check your understanding. It is also important for students to find the best study environment and develop a routine that works for them. In addition to the knowledge that must be memorized, medical students need to learn how to effectively present this information in written form. There are some specific writing skills needed for this, and students often need to practice with their peers or tutors. A good way to improve these skills is through multimedia learning, which involves a combination of text, images and videos. This is a highly effective study technique that more and more medical students are adopting. Medical professionals must also know how to interact with patients and other members of the healthcare team. This includes how to treat them, as well as what kinds of discussions are appropriate in different situations. Often this is an aspect of the job that is overlooked, but it is essential for success in the profession. Finally, medical students must be able to manage their work load and stress. This can be challenging, especially when the curriculum is extremely demanding. A few simple strategies can help, such as finding the right balance between study and social activities, maintaining a healthy sleep schedule and using multimedia learning to make studying more efficient and effective.
Read MoreHealth is a complex concept with multiple definitions. This plurality is mainly due to the fact that most concepts are elaborated in contexts which have specific borders, content and identity. The notion of health is no exception. Consequently, health makes sense predominantly within its home context and in the way it is defined within this context. In this context, the term is essentially a pragmatic category which is used for making sense of phenomena and for describing the relations between them. The simplest definition of health is that it is equated with the absence of disease. However, it has been shown that this view is not accurate and that the presence of disease does not necessarily preclude people from being healthy. The broader concept of health is based on the idea that individuals are able to function in society in a way that enables them to realize their aspirations and satisfy their needs. It also reflects the notion that there is a continuum of well-being (from healthy living at one end to illness culminating in death at the other) and that people are located on this continuum depending on many factors, known as ‘health determinants’. A good understanding of the meaning of health is crucial for the promotion of human health and wellbeing. Consequently, health is a key element of sustainable development and the goal of the World Health Organization is to achieve ‘health for all’. It is a common belief that health is directly related to personal lifestyles. The majority of people believe that they are largely responsible for their own health. They tend to attribute their state of health to things like their genetics, diet and level of physical activity. Nevertheless, the quality of their health is also determined by environmental conditions such as the weather, air quality, and even their neighbourhoods. When writing health articles it is important to keep in mind that most readers of medical or health-related material are looking for something practical and useful. They expect a genuine tone and voice, and they are not willing to read articles that contain false or over-optimistic claims of miracle cures. In addition, most readers of health and medical articles have realistic life-expectations, and they are aware that there are limits to what can be achieved in the face of a certain illness or disability. The judging criteria for award winning health articles vary from year to year, but in general they consider the article’s quality and breadth of research, natural writing style and originality of topic. The judges may also take into account the societal implications of the work. In order to increase the chance of getting your health article published, it is recommended that you familiarise yourself with the judging criteria. This will help you to tailor your article towards the specific requirements of each judging panel. This is particularly important if you are aiming for a particular publication, such as a medical journal.
Read MorePharmacy is the science and practice of discovering, producing, preparing, dispensing, and monitoring medications, aiming to ensure safe, effective, and affordable use of medicines. It is a miscellaneous science, as it links health sciences with pharmaceutical sciences and natural sciences. Pharmacy is a profession that requires extensive education, licensure, and continuing professional development. Whether you are looking for prescription medication, over-the-counter medications, or supplements, online pharmacies offer a convenient and safe way to purchase these products. They are also a great resource for information on various health conditions and diseases. In addition, many online pharmacies also provide discounted coupons that can be used on future purchases of the same product. This is a great way to save money on your medication while still getting the same quality and effectiveness as you would at a traditional pharmacy. The first step in choosing an online pharmacy is to find one that has a license to sell medication in your state or country. You should also look for a pharmacy that offers secure, encrypted transactions and payment methods. Finally, be sure to check out customer reviews of the pharmacy to make sure that it is legitimate and reputable. Once you have found an online pharmacy that meets your needs, you should create an account with the website. This will allow you to keep track of your orders and check the status of each one. You can also sign up for a newsletter to get information on new products and promotions. Some online pharmacies offer free shipping on certain orders, which can help you save even more money. If you have any questions about the safety of a medicine, be sure to talk with your doctor or pharmacist. Do not put old or unused medications in the household garbage or flush them down the toilet. You can also visit your local pharmacy to ask for a free medicine disposal kit or to report any side effects on the Yellow Card Scheme, which is run by the Medicines and Healthcare products Regulatory Agency (MHRA). Pharmacists are increasingly becoming involved in patient care and non-dispensing activities. This includes providing immunizations, counseling patients on how to take their medications, and collaborating with other healthcare providers. When pharmacists are involved in patient care, outcomes improve and costs decline. To become a pharmacist, you must have a bachelor’s degree in a field like biology or chemistry. You should then complete a pharmacy program that includes clinical experience. Some colleges also offer dual degree programs in business and a health-related subject, such as public health or health administration. A career in pharmacy can be a rewarding and challenging opportunity. You may choose to specialize in a particular area of practice or become a leader in scientific research. Regardless of your specialty, you can expect to work long hours and have demanding responsibilities. However, the rewards are significant. You can have a positive impact on people’s lives while making a lucrative salary.
Read MoreCancer is a disease that occurs when your body’s cells start to grow and divide uncontrollably. Eventually these extra cells can form tumors that may invade and damage your healthy tissues. If left untreated, cancer can kill you. But scientists have learned a lot about how cancer develops and how to treat it. They have also developed ways to prevent cancer and keep it from coming back after treatment. Cancer has many causes. Some are related to what you do, such as smoking or being overweight. Other factors are related to the environment, such as exposure to radiation or certain chemicals. Still others are inherited from genes that are passed down through your family. And aging can cause changes that increase your chances of developing cancer. One of the key discoveries that helped scientists understand cancer was the fact that all living tissues are composed of cells, the smallest units of the body that make up each organ and tissue type. Cell biologists began to study the characteristics of normal cells, and from these they could infer what was happening when cells became malignant or abnormal. At first, the findings were not very clear. Each new observation seemed to contradict the last, leading to great confusion about cancer. It was not until about 1910 that a very clear and simple explanation for cancer was constructed, based on the work of two scientists named Hooke and Virchow. These scientists were able to show that cancer was an infection, and they attributed the infections to microorganisms such as bacteria or viruses. Their studies prompted scientists to begin searching for agents that might cause cancer. Some of these agents were external, such as X-rays or other forms of radiation; others were internal, such as chronic irritation of tissues or the accumulation of toxins in a body over time. The current view of how cancer starts in the human body is much more complex than the simple notions that led to these early observations. Using sophisticated techniques, scientists are now able to examine the molecular changes that occur in a normal cell as it becomes precancerous or cancerous. These molecular changes, called mutations, give precancerous cells the ability to grow out of control. Cancer cells can be detected by examining a sample of your blood or tissue for abnormalities. They can also be found by X-ray, CT scans or other tests. Some cancers can be treated with surgery, chemotherapy and radiation therapy. Others need more aggressive treatments, such as immunotherapy or gene therapy. Researchers are now working to develop newer and more effective treatments for cancer. Some of these new treatments are being tested in clinical trials, and some people with cancer choose to participate in those trials in order to receive cutting-edge care that might help them survive the disease. Currently, 3 out of every 5 people with cancer will have surgery to remove the tumor. During surgery, doctors try to remove as many cancer cells as possible. They will also take out some healthy cells and tissue to make sure the cancer can’t grow back.
Read MoreMedicine is the science and practice of diagnosis, treatment, cure and prevention of disease. It is a profession that involves knowledge of human anatomy and physiology, medical ethics, and the social sciences (such as history, philosophy, religion, art and literature). The practice of medicine includes the administration of drugs and vaccines and surgical procedures. Medical practitioners are usually licensed or registered. This ensures that patients receive quality care from a trained professional and protects the public from incompetent practitioners. There are many branches of medicine. Some are descriptive, such as anatomy (the study of the structure of living things), cytology (the microscopic study of cells) and histology (the scientific and medical examination of tissues). Other branches use the tools of other disciplines, for example biochemistry uses the methods of chemistry, while physiology applies the laws of physics to understanding body systems. Biomechanics combines the methods of biology, physics and mathematics to study biological structures, while biostatistics applies statistics to the broad field of biology. Other fields of medicine include pharmacology (the study of medicines), photobiology (the interaction between light and living tissue) and radiation biology (the effects of ionizing radiation on life). Medicine overlaps with other disciplines such as nutrition (the science of food and drink), dietetics, occupational therapy, physiotherapy, pathology and psychiatry. Medical research is a vital component of modern medicine. The results of this research are then used to develop new treatments and cures. A major area of medical research is genomics, which uses the tools of chemistry, physics, biology and computer science to understand the function of genes and their role in diseases like cancer. The first point of contact for most patients seeking medical attention is a primary care provider, such as a physician or nurse practitioner. This may be in the form of an office visit, a trip to a clinic or hospital, home visits or telephone consultations. Primary care providers make up about 90% of all medical visits. During the visit the patient will discuss their symptoms, and a physical examination will be performed. Laboratory and imaging tests may be ordered if necessary. Depending on the outcome of the investigation, the physician will make a diagnosis and prescribe medication or recommend other treatment. Medical ethics are the principles and beliefs that govern medical practice. They are derived from ancient traditions, such as herbalism and the Greek four humors, and from modern scientific biomedical research. These have largely replaced earlier beliefs such as those that underlie the practice of bleeding the sick to purge them of their “evils”. Medical ethics also deal with the appropriate use of medical technology, for example the use of blood transfusions.
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