04 March 2015, 12:01 AM ET
Deaths from heroin overdose in the United States have nearly quadrupled in the last decade, with much of the rise occurring in recent years, according to a new report.
03 March 2015, 04:22 PM ET
People in New York state log the most steps, according to new data from an activity-tracker company.
03 March 2015, 02:55 PM ET
Children get the flu more often than adults do, a new study finds. Kids typically catch the flu once every two years, whereas adults over age 30 get the flu about twice a decade, a study of people living in China found.
03 March 2015, 07:24 AM ET
A furry companion can offer comfort to hospital patients, but new guidelines recommend that only dogs — and not cats — be allowed in hospital pet therapy programs.
03 March 2015, 07:23 AM ET
People who are trying to impress a date with their good looks might want to limit themselves to one drink, a new study finds.
02 March 2015, 06:30 PM ET
Good news for people who drink coffee every day: Consuming a moderate amount of coffee could lower the risk of clogged arteries that can lead to a heart attack, a new study finds.
02 March 2015, 03:01 PM ET
People's happiness appears to be closely linked with how much sleep they get.
02 March 2015, 12:40 PM ET
The percentage of people in the United States who see regular marijuana use as harmful has fallen since the beginning of the 21st century, a new study finds. That could translate into more pot users in the future.
02 March 2015, 11:50 AM ET
Measuring children's height and weight as they grow can be a powerful indicator of whether they have the digestive condition called celiac disease, and may help doctors diagnose children with the disorder earlier, a new study finds.
02 March 2015, 11:42 AM ET
People who eat peanuts or other nuts may live longer, a new study finds.
02 March 2015, 07:32 AM ET
The superbug CRE and other antibiotic-resistant bacteria have the potential to create a nightmare scenario, but experts hope to slow the spread of these scary infections.
02 March 2015, 01:49 AM ET
When parents ask to delay their child's vaccinations, most doctors agree to do so, even though they think it's a bad idea, a new study finds.
28 February 2015, 04:30 PM ET
Old medicines are giving new hope to people Duchenne Muscular Dystrophy.
28 February 2015, 11:01 AM ET
A bionic eye has allowed a man whose retina was damaged to see again for the first time in 10 years.
27 February 2015, 11:50 PM ET
Research in humans is a crucial part of our medical system. We need to be able to test that vaccines and drugs are safe and effective in people before they are released to the general public.
27 February 2015, 05:01 PM ET
Plan to buy a fitness tracker like the Fitbug Orb or TomTom Runner Cardio? Check out our in-depth reviews before making a purchase.
27 February 2015, 12:01 AM ET
Rates of suicide among middle-age adults in the United States have increased in recent years, and a new study suggests that the economic downturn of 2007 played a role in this rise.
26 February 2015, 09:00 PM ET
If designer babies ar eon the horizon, are designer superbabies next?
26 February 2015, 06:42 PM ET
People who drink four cups of joe daily have a lower risk of developing the debilitating disease multiple sclerosis (MS), researchers say.
26 February 2015, 06:40 PM ET
There are at least 10 drugs that are more deadly than marijuana, including some that are legal, such as alcohol and nicotine, a new study by researchers in Germany and Canada finds.
26 February 2015, 03:00 PM ET
Obesity and heart disease are well known, but now doctors can link excess weight to many cancers.
26 February 2015, 02:00 PM ET
A single gene that is found only in Homo species may partly explain why the human neocortex, the seat of higher cognitive functions, is so large.
25 February 2015, 06:18 PM ET
If you are abstaining from sweets for Lent this year, here’s what you can expect over the next 40 days.
25 February 2015, 05:00 PM ET
Nearly half a million cases of the difficult-to-treat and sometimes deadly infection called "C. diff" now occur yearly in the United States.
25 February 2015, 04:20 PM ET
A little injection of the so-called 'love' hormone, oxytocin, can sober up drunken rats, reversing their clumsy alcohol-induced behaviors, scientists report.
25 February 2015, 01:00 PM ET
Food Additives Linked to Weight Gain, Inflammation
25 February 2015, 12:54 PM ET
A man whose retina was destroyed was able to see again, thanks to an implanted retinal prostheses.
25 February 2015, 09:33 AM ET
After testing nine smart scales, we recommend the Withings Smart Body Analyzer over the popular Fitbit Aria. Read our full review here.
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.