25 February 2015, 07:10 AM ET
The woman's obsessive-compulsive disorder symptoms appeared every year when winter began, and then ended as the seasons shifted toward summer. After living with the condition for a decade, the woman was treated at a clinic and recovered.
24 February 2015, 06:30 PM ET
Three men who suffered car or climbing accidents that caused a permanent loss of hand function became the first people with this type of injury to receive bionic hands controlled by transplanted nerve tissue, a new study reports.
24 February 2015, 12:38 PM ET
Alaska joins Colorado and Washington as the third U.S. state to legalize the recreational use marijuana.
24 February 2015, 09:18 AM ET
People in snowier states appear to sleep for a little longer during winter months than those in sunnier states.
24 February 2015, 12:40 AM ET
From gingko to coconut oil to taurine, people spend too much money on supplements that just don't work.
23 February 2015, 08:15 PM ET
Feeling really angry or anxious can greatly increase your risk of having a heart attack, especially if you feel so tense that you clench your fists, a new study reports.
23 February 2015, 04:35 PM ET
If children are at risk for a peanut allergy, having them eat peanut butter frequently from an early age may help protect them from developing the allergy, a new study suggests.
23 February 2015, 02:40 AM ET
New guidelines for children's nutrition focus on broad diet patterns and what kids should eat, rather than what they shouldn't.
23 February 2015, 02:08 AM ET
Doing dishes by hand, rather than loading them into the dishwasher, might help stave off childhood allergies, a new study suggests.
20 February 2015, 06:35 PM ET
Inflammatory bowel disease (IBD) is a condition that involves chronic inflammation in all or part of the digestive tract.
20 February 2015, 06:24 PM ET
20 February 2015, 04:52 PM ET
In a bizarre new trend in certain circles, people are snorting chocolate powder through their noses with the aid of a machine. But some experts say the practice may be dangerous.
20 February 2015, 04:00 PM ET
Many YouTube videos that depict drunkenness involve humor, but they often do not show the negative consequences of drinking too much alcohol, a new study suggests.
20 February 2015, 03:52 PM ET
Energy drinks may be to blame in the case of an otherwise healthy 26-year-old man who had a heart attack, according to a new case report.
19 February 2015, 09:41 PM ET
The liver is a vital organ that supports nearly every other organ to some capacity. You cannot live without a healthy liver.
19 February 2015, 08:00 PM ET
There's a common belief that hookah water pipes filter out toxic chemicals, but a new study debunks this myth.
19 February 2015, 06:47 PM ET
For the first time, new recommendations set a specific limit on the amount of added sugar that Americans are advised to consume.
19 February 2015, 02:00 PM ET
UV rays can keep harming your skin hours after you step out of the sunshine, researchers say.
19 February 2015, 10:15 AM ET
We still aren't winning the fight against obesity. In a new series of articles, experts explain what society has done wrong in the battle of the bulge, and what needs to happen now.
19 February 2015, 02:03 AM ET
Baby boys who were exposed to a chemical in plastics may show some signs of altered genital development, according to new research published today.
19 February 2015, 12:12 AM ET
Whether man-made sources of mercury are contributing to the mercury levels in open-ocean fish has been the subject of hot debate for many years.
19 February 2015, 12:01 AM ET
Alaska is now the happiest state in the nation, after ranking among the top 10 for several years, according to a new poll.
19 February 2015, 12:01 AM ET
A new poll from Gallup-Healthways shows which states had the highest and lowest well-being in 2014.
19 February 2015, 12:00 AM ET
Providing advice about lifestyle can be more challenging than prescribing standardized medications or smoking cessation because “normal” life differs widely among patients and requires individualized counseling.
18 February 2015, 10:39 PM ET
Gestational diabetes is a type of diabetes that develops, or is first diagnosed, during pregnancy. The condition, like other forms of diabetes, involves high blood sugar levels.
18 February 2015, 10:32 PM ET
Itchy eyes, a congested nose, sneezing, wheezing and hives: these are symptoms of an allergic reaction to the environment caused when plants release pollen into the air, usually in the spring or fall.
18 February 2015, 10:27 PM ET
Reiki is a therapy often described as palm healing or hands-on-body healing in which a practitioner places hands lightly on or over a patient's body to treat or cure various ailments.
18 February 2015, 04:57 PM ET
Suicides correlate with air pollution levels in Salt Lake county, Utah, adding to a small but growing body of research that suggests that environmental factors influence suicide risk.
18 February 2015, 04:01 PM ET
Avoid a trip to the ER — falling is not just caused by ice, or age.
18 February 2015, 03:56 PM ET
How you cope with stress before it happens could affect how you feel the next day, a new study suggests. Some strategies, like daydreaming about the problem fixing itself, might make you feel worse.
18 February 2015, 12:42 PM ET
"Every 13 seconds an older person falls in the U.S. and has to be rushed to a hospital," according the Ohio State University Wexner Medical Center. The center has opened a clinic to help slow this disturbing trend.
18 February 2015, 07:00 AM ET
Here's why people get "the munchies" after smoking marijuana.