Sarah Klein

Elizabeth Barnett, MD, professor of pediatrics at Boston University School of Medicine explains if a second flu shot is helpful in preventing illness
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Supplementing with vitamin D or with fish oil did not lower cancer diagnoses or cardiovascular events, according to a five-year study of nearly 26,000 healthy adults
Public officials are warning of an outbreak of typhus, a bacterial disease usually spread by lice or fleas, in the Los Angeles area.
The harmless, although unsightly, condition occurs when bumps on the tongue's surface become discolored due to antibiotics or poor oral hygiene
A new study from the University of Nottingham and the Finnish National Institute for Health and Welfare pinpoints the germiest spot in the airport
Pancreatic cancer starts in cells in the pancreas, a roughly six-inch gland in the abdomen that plays a role in digestion and blood sugar regulation
A 42-year-old woman had a contact lens stuck in her eye for 28 years
The newest internet challenge — the “Hot Water Challenge” — has landed a teenager in the hospital with second-degree burns
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What to know about sun poisoning, and how to stop it from happening as you head outside this summer
For months, she had been experiencing worsening symptoms, which made it difficult to ride her horse and had caused repeated falls.
Do you need to reapply sunscreen after 5 p.m.? Can you get a sunburn on a cloudy day? Can your eyes get burned? We asked dermatologists for their expert advice
Researchers identified mosquito-borne keystone virus in a human for the first time
Doctors removed a live worm living under the facial skin of a 32-year-old woman in Russia.
An eye surgeon discovered hardened masses of mascara in the eyelids of Theresa Lynch after years of not taking off her eye makeup.
According to new guidelines issued by the American Cancer Society, colorectal screenings should start at age 45 — not 50
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Pasta was linked to weight loss in a new study, where the subjects ate the carb-filled dish daily as part of a glycemic index diet
The "anal worms" that Kristen Bell and her daughter had are not as dangerous or as uncommon as they sound, a doctor explains
Actor Kevin Smith suffered a "widowmaker" heart attack — a doctor explains what makes it more severe than other cardiac events
Kourtney Kardashian revealed that she weighs 98 lbs., but that doesn't necessarily mean she's unhealthy. Doctors and eating disorder specialists weigh in
We asked experts if using distilled garlic water to open up your sinuses is safe and effective.
Find out how many calories athletes burn while competing in Winter Olympics sports including skiing, snowboarding, and more.
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One Reddit user penned a hilarious breakup letter to Planet Fitness to cancel his membership with the gym
If you're the type to put off getting your shot, don't let the sniffles be another excuse
A Texas woman died after eating oysters that carried the flesh-eating bacteria vibrio.