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11 February 2015, 06:30 PM ET
To treat people who are obese, doctors need to move beyond simply telling their patients to eat less and exercise more, some researchers argue.
11 February 2015, 05:54 PM ET
Misfit Flash is an activity and sleep tracker that you can wear on your wrist, clip onto your belt or dangle from your keychain.
11 February 2015, 04:37 PM ET
The polar vortex is sending cold air to the East again. Research continues into role warming might play.
11 February 2015, 04:03 PM ET
Eosinophilic esophagitis (EoE) is on the rise. The condition, caused by immune cells gathering in the esophagus, makes it "progressively harder to swallow," according to Ohio State University Wexner Medical Center.
11 February 2015, 03:53 PM ET
People with mental disorders are two times more likely to die early than their peers in the general population — and not just because of factors like suicide, a new study suggests.
11 February 2015, 03:32 PM ET
Lower ocean pH levels are impairing coral skeleton growth, making it easier for mollusks, worms and sponges to do some serious damage.
11 February 2015, 03:25 PM ET
How did the Romans release wild animals into their mighty Colosseum? How did the massive Hagia Sophia cathedral in Istanbul withstand centuries of earthquakes? And how did a desert people carve elaborate tombs in rocky cliffs in Jordan?
11 February 2015, 03:11 PM ET
NOVA investigates major engineering mysteries and amazing innovations of the ancient world in a new, three-part series, “Building Wonders,” premiering February 11-25, 2015 on PBS. 
11 February 2015, 01:00 PM ET
A massive outpouring of carbon dioxide from the deep ocean helped end the last ice age, scientists report today.
11 February 2015, 12:02 PM ET
The actor talks about support systems to aid in recover from substance abuse. He also mentions the importance of actors creating an accurate portrayal of a character with a mental illness or addiction.
11 February 2015, 10:00 AM ET
The universe is smiling today — at least, that's what it looks like in a new space photo that appears to feature a smiling face emerging from the light of the universe.
11 February 2015, 07:25 AM ET
In the not-too-distant future, the typical picture of a big American household in the suburbs might include just one car in the driveway.
11 February 2015, 07:14 AM ET
From the idealistic prose of Cervantes' "Don Quixote" to the crisis-ridden pages of daily newspapers, most human language tends to take a happy view on life, a new study suggests.
10 February 2015, 07:52 PM ET
The culture of Mexico varies widely throughout the country, but traditions are highly valued.
10 February 2015, 07:47 PM ET
Older men may want to put down that glass of wine, reports a new study, which found that only women ages 65 or older may benefit from drinking alcohol, and even that is subject to debate.
10 February 2015, 07:36 PM ET
See "spot" run, see "spot" walk, see "spot" get kicked and keep on going. Boston Dynamics' newest addition weighs in at about 160 lbs. and uses its sensor head to navigate.
10 February 2015, 07:36 PM ET
A greenhouse gas is any gaseous compound in the atmosphere that is capable of absorbing infrared radiation, thereby trapping and holding heat in the atmosphere.
10 February 2015, 07:31 PM ET
The gallbladder is a small organ that is used to store bile, which breaks up the fat in food.
10 February 2015, 07:03 PM ET
New high-speed camera footage has revealed why popcorn kernels pop, jump and flip when they are heated.
10 February 2015, 05:30 PM ET
A newborn baby girl was born pregnant with her own twins.
10 February 2015, 05:27 PM ET
"Measles parties" that intentionally expose unvaccinated children to the illness are not a good idea, health officials said this week.
10 February 2015, 05:20 PM ET
Scientists at NYU are using lollipops to help understand how materials dissolve. "Flowing fluids generate unique shapes through erosion or dissolution," according to NYU assistant professor Leif Ristroph.
10 February 2015, 04:09 PM ET
A study finds that language is skewed toward happy words.
10 February 2015, 04:04 PM ET
Google-owned robotics company Boston Dynamics recently unveiled its newest animal-inspired bot. Meet Spot — a four-legged robotic dog that can climb stairs, trot over rough terrain and even recover from a well-placed kick to the ribs.
10 February 2015, 03:59 PM ET
Geoengineering offers solutions and risks but reducing emissions is still the best way to address climate change.
10 February 2015, 02:05 PM ET
Millions of years before LSD and rock and roll, dinosaurs munched on psychedelic fungus, a new study suggests.
10 February 2015, 12:15 PM ET
Test subjects at Penn State were presented letters and numbers arranged in a square, then were asked to recall the corner in which a certain letter or number appeared (easily completed).
10 February 2015, 12:07 PM ET
To combat bad health information on the web, Google announced that it's rolling out a new feature to bring fact-checked, doctor-vetted medical data up front when users search for conditions like pink eye, concussions and measles.
10 February 2015, 12:00 PM ET
A growing number of kids and adults in the United States are practicing yoga, according to new results from a government survey on complementary medicine.
10 February 2015, 11:03 AM ET
Many smartphone apps are just as good as wearable devices at tracking physical activity, a new study suggests.
10 February 2015, 10:44 AM ET
Researchers have created a cap that electrically stimulates the brain’s medial frontal cortex. Initial studies have shown a boost in learning and improved decision-making with its use.