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The World Health Organization (WHO) on Friday urged fully vaccinated people to continue to wear face masks and maintain social distance, as the Delta variant of COVID-19 spreads quickly around the world. The guidance is causing some confusion in the U.S., where the Centers for Disease Control and Prevention (CDC) maintains that “fully vaccinated people can resume activities without wearing a mask or physically distancing.” But experts say that could change....

If you have been trained in CPR for a very long time, you might wonder why the order of steps changed to put the breaths after the chest compressions. Why did CPR change from A-B-C to C-A-B? In 2010, the American Heart Association’s (AHA) Guidelines for CPR rearranged the order of CPR steps. Today, instead of A-B-C, which stood for airway and breathing first, followed by chest compressions, the AHA teaches rescuers to practice C-A-B: chest compressions first, then airway and breathing....

It can be challenging to keep up with recommendations for how to prevent disease and stay healthy. Guidelines for what to eat or not to eat, how (and how often) to exercise, how much to sleep, and other lifestyle measures change all the time. What’s more, medical organizations and other sources sometimes offer conflicting advice. That said, the basics of disease prevention actually aren’t complicated. A good source is the U....

Question: Which type of calcium supplement is best? Answer: There are many types of calcium supplements, including calcium carbonate, calcium citrate, calcium gluconate, and others. Calcium exists as a compound, bound to something else, that’s why it is found in these forms. However, some people debate whether or not one particular type of calcium is better than another. The Best Calcium Supplements The most important thing to look for when choosing a calcium supplement is the amount of elemental calcium the supplement contains....

Cat eye syndrome (CES) is also known as Schmid–Fraccaro syndrome. It’s a condition caused by a chromosomal abnormality and is named after the cat-like eye shape it causes. The condition can also cause heart defects, cleft palate, and other problems. Cat eye syndrome is the result of a genetic defect in chromosome 22, which causes an extra chromosome fragment. This article reviews common characteristics and symptoms of cat eye syndrome. You’ll also learn the causes, diagnostic methods, treatment, and outlook for the condition....

Social interactions are an important part of our day-to-day activities. These social interactions can be affected when you have bad breath or halitosis. This can be difficult for several reasons. You may not even know you have bad breath because of gradual tolerance to your own breath smell. You may also experience problems with your sense of smell with some causes of bad breath. Making this problem even more difficult or distressing for you is that your family and friends may not be comfortable telling you that you have a problem....

Chloroquine is an antimalarial drug. In addition to being used as a malaria treatment, it can also be used as prophylaxis to prevent malaria for travelers planning a trip to regions where the disease is both endemic and known to be treated by this medication. Chloroquine can be used to treat lupus and rheumatoid arthritis. Chloroquine is taken as an oral tablet. Uses Chloroquine is used as a suppressive treatment for acute attacks of malaria due to P....

Chronic traumatic encephalopathy (CTE) is a progressive neurodegenerative (“nerve-dying”) brain disease that is caused by repeated head trauma (concussion). CTE is most commonly seen in athletes in contact sports such as football and ice hockey. Military soldiers may also develop CTE, especially those who have experienced multiple head injuries from blast trauma. Unfortunately, there is currently no treatment for CTE. Prevention, therefore, is of great importance. CTE Symptoms There are symptoms that are highly suggestive of CTE, including the following:...

Crusted scabies, also known as Norwegian scabies, is a severe form of scabies that typically happens in people with a weakened immune system. Scabies mites are parasites that burrow into and lay their eggs in the upper layer of human skin. Scabies is treatable and not usually a cause for concern. However, in people who are immunocompromised, the infestation can become severe and difficult to treat. With crusted scabies, a person can be host to millions of mites, compared to a regular infestation, which usually involves 10 to 15 mites....

Whether your child chews gum for that yummy sweet flavor or your teenager chews it for stress relief or to mask bad morning breath, you probably did not consider this common habit a potential trigger for your precious one’s headaches or migraines. But before your child or adolescent grabs that pack of gum, you may want to suggest a mint or an alternative option for their sweet tooth, especially if they are prone to headaches....

The problem starts out innocuously enough with some vague discomfort in the leg, especially in the groin area. Later, the pain becomes more severe and starts to involve the hip. Within a short period of time, walking will become difficult, and the pain will grow in intensity until it eventually feels unbearable. It is only that this stage that most people will see a healthcare provider. Among people with HIV, these sorts of symptoms can mean any number of things, some of which are related to the infection and others that are not....

Calorie density, also known as calories per pound, is how much energy, i.e. calories, is provided per unit measure of food. Calorie-dense foods, such as fat and refined sugars, provide many calories in a small amount of food. Foods with low-calorie density—fruits, vegetables—provide fewer total calories in a larger volume of food. Here’s how to find the best mix of both to stay healthy, lose weight, and help balance your caloric intake....

Head lice are a common problem among school-age children and are diagnosed by spotting the live lice or their eggs, called nits, on the scalp or hair. You can learn how to recognize the lice and nits so you can screen your child and other family members. A special comb is often helpful in this process. The good news is that no known diseases are carried by common head lice. The bad news is that they can make you itch and can easily spread between children and their family members....

About 5% to 10% of the population has liver cysts; however, they are mostly harmless. Around 5% of people with them require treatment that’s typically only offered if the cysts are painful, large, affect liver function, or are cancerous. Liver cyst treatment may include draining the cyst, surgically removing it, taking medications, or having a liver transplant (in extreme cases). In this article, learn more about liver cysts and their various treatment options....

The stomach flu is often contagious from the time you’re exposed to whatever is causing it. It remains so the whole time you’re sick (when you’re most contagious) and for quite a while after you start feeling better. Altogether, this can add up to a few weeks. Exactly how long you are contagious depends on what you’re infected with. There are several pathogens that can cause the stomach flu. This article looks at the various durations for which the stomach flu is contagious and how long you should stay home if you get it....

X-ray images can detect joint space narrowing. In a healthy joint, there is a normal amount of space between the ends of the bones that form the joint. The ends of the bones in a joint are covered by articular cartilage. In an unhealthy joint—one that is affected by arthritis—there is evidence of narrowing of the space between the ends of the bones in the joint, due to cartilage loss....

Anxiety is a common symptom in patients nearing death. Some patients may experience mild anxiety, but for others, full-blown panic attacks can occur. Regardless of the cause, anxiety needs to be treated promptly. Symptoms Reactions to anxiety can vary. Some may be able to verbalize what they are feeling and others may not. It’s important to know what anxiety looks like so you can easily recognize it when it happens....

I never suspected I had lung cancer before I was diagnosed. Four years ago, I went in to have an ultrasound for an issue with my liver enzymes when doctors discovered I had fluid around my lung. Meet the Author Marilyn Chapman is a lung cancer patient at McDowell Cancer Center. November 2021 marks her fourth year since being diagnosed with stage 4 lung cancer. I was then sent to see a pulmonologist....

Even though they aren’t red and inflamed like your typical pimple, blackheads, and whiteheads (also known as milia) can be just as annoying. But comedonal acne, which is what we call the type of acne that is made up of mainly non-inflamed blemishes, can be cleared up. You just have to know the best way to treat it, and you have several different options. OTC Treatment for Mild Cases If you have just minor blackheads and bumpiness, try an over-the-counter acne treatment first....

Polyisoprene condoms are a safe sex option for individuals with latex allergies. Many people feel that polyisoprene condoms provide a sensation profile that is far more similar to their latex counterparts. There’s a good reason for that—polyisoprene is the synthetic form of latex. In other words, its latex made in a laboratory rather than natural rubber latex, which is made from a tree. Confused as to why a latex product is being recommended as an option for people with latex allergies?...