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Harvard Medical School

A collection of news and information related to Harvard Medical School published by this site and its partners.

Top Harvard Medical School Articles

Displaying items 111-121
  • Neanderthal genes helped modern humans evolve, studies suggest

    Mating between Neanderthals and the ancestors of Europeans and East Asians gave our forebears important evolutionary advantages but may have created a lot of sterile males, wiping out much of that primitive DNA, new genetic studies suggest.  The...
  • Without other symptoms, rapid heartbeat when you're not exercising is rarely serious

    Q: Other than anxiety, what can cause your heart rate to increase when you're not exercising? A: Rather than just listing the causes, here's my approach to investigating a rapid heartbeat. First, I'd like to know if you have any other symptoms. That...
  • Fight worries over food additives with a healthy diet

    Q: Do synthetic dyes, flavors and preservatives make the symptoms of attention deficit hyperactivity disorder (ADHD) worse? A: There is little agreement on how such additives might contribute to ADHD symptoms in children. Many studies on this issue are...
  • Itchy skin can have several sources, but dryness tops the list

    Q: I've been itching more over the past couple of months. At first, there's no rash. But my skin does turn red in areas where I've scratched. What might be causing this? A: Scratching your skin will cause it to become red, no matter what the reason for...
  • Close relationships help you live longer -- and enjoy life more

    Q: Is it true that having good relationships increases your chance of living longer? A: Since the late 1980s, studies have suggested that this is true. People who enjoy close relationships with family and friends are more likely to live longer than...
  • Back pain often overdiagnosed and overtreated

    Harvard Health Blog What doctors call "routine" back pain can really, really hurt. Surprisingly, the best treatment is usually quite conservative--over-the-counter pain relievers, ice and heat, and gentle exercise. Yet for decades, many doctors have been...
  • Importance of expiration date depends on the specific drug

    Q: I have several medications that are well beyond their expiration dates. Does that mean that they won't work -- or are dangerous? A: The manufacturer's expiration date on most medications is 2-3 years from when the pills were made. This assumes they're...
  • Neanderthal DNA lives on in modern humans, research shows

    The ancestors of most modern humans mated with Neanderthals and made off with important swaths of DNA that helped them adapt to new environments, scientists reported Wednesday. Some of the genes gained from these trysts linger in people of European...
  • When is surgery needed for a pinched nerve at the elbow?

    Q: I may need a procedure called a cubital tunnel release. Can you tell me what is actually done during this procedure? What should I expect after the surgery? A: The "cubital tunnel" refers to a passageway along the inner part of the elbow. It's bounded...
  • Auditory processing disorder can be difficult to diagnose

    Q: My 7-year-old son was recently diagnosed with auditory processing disorder. What can you tell me about this problem, and is this something he will outgrow? A: Here's what being diagnosed with auditory processing disorder means: While your son's...
  • Sleep hygiene key to restful nights for kids with ADHD

    Q: My child has Attention Deficit Hyperactivity Disorder (ADHD) and it's been hard for him to get to sleep. What can we do? A: Sleep problems may affect up to half of children and adolescents with attention deficit hyperactivity disorder (ADHD)....