A female nurse who tended to a Liberian Ebola patient who died at a Texas hospital this week has tested positive for the disease, CNN reports. The diagnosis is preliminary, but if confirmed it will be the first time anyone has contracted the disease in the U.S. (MORE: Ebola in the U.S.: What You Need to Know) The health care worker was in full protective gear when she treated for Thomas Eric Duncan at Texas Presbyterian Hospital, according to the...

Chilly fall weather might make you gravitate toward your coffee maker — after all, who doesn't love a warm drink on a cold morning? If your goal is not only to warm up, but also to feel a little slimmer and healthier come spring, you might be interested in one of the latest wellness trends: dropping a dollop of grass-fed butter into your coffee cup. The thought is the healthy fat fills you up and gives you the energy you...

Science Changes Its Tune on Fat If cold weather has you craving warm comfort food, don't fret. Fat — even a little bit of butter — is not just good for your body, it's absolutely essential. "Healthier fats … can help fend off cardiovascular disease, reduce total cholesterol and bad LDL cholesterol," Victoria Shanta Retelny, R.D.N., a nutritionist and writer in Chicago, told weather.com. "People are really starting to understand the benefits of healthier fats." Focusing on dietary fat can...

(Thinkstock/Stockbyte) Here's one more reason to dread the end of daylight saving time: Some sunshine might help slow the development of obesity and type 2 diabetes — in mice, at least. A new study examined the relationship between the sun's rays and metabolism, and found that shining UV light on overfed mice slowed their weight gain and caused the animals to display fewer warning signs of type 2 diabetes, a condition that affects more than 29 million Americans, with another...

Skip the dreaded fall fitness slump this year — you know, the one between the end of swimsuit season and New Year's resolutions — and hit the gym to work on your strength, balance and flexibility. These three attributes could help you do three of the hardest exercises gym goers do, as rated by Stack.com in the video above. (MORE: 9 Exercises to Never Do) For most people, tough moves at the gym often involve upper body strength, such as...

Sick of sticky notes everywhere -- or writing on your hand when nothing else is around? (Come on Type A people. I know you're out there). Well, a new study says there's an easy way to get your memory in gear: eat more chocolate. It's not the chocolate as much as it is the flavanols, which are found in plants, like cocoa, some vegetables and tea. In one of the experiments, a group 50- to 69-year-olds drank a mixture high...

(Thinkstock/Jupiterimages) A new study examined the relationship between arsenic levels in U.S. well water — from a Native American population in the Dakotas and the Southwest — and found that the element increases heart health risks, The New York Times reports. Dr. Ana Navas-Acien of the Bloomberg School of Public Health at Johns Hopkins University in Baltimore compared urinary arsenic levels and disease rates among 4,000 Native Americans, data that have been collected on the study group since the late...

If you live in the "pollen belt" — the swath of the country that stretches from the southern Midwest to the Southeast — you might be experiencing extra seasonal symptoms this fall. That's the area with the highest pollen counts in the country, according to the Asthma and Allergy Foundation of America's ranking of fall allergy capitals. But no matter where you live, if you have the right genetics for allergies, say your parents have them, you might be at...

There's a season for stress and sadness, and we're in it. "One, we have less light [this time of year]; people then have a tendency toward seasonal affective disorder, especially those who live north of Washington, D.C., " stress management expert Kathleen Hall, Ph.D., of The Stress Institute, told weather.com. "The second thing you have is the holidays, and all the stresses associated with [them], first being finances, and the second thing that is really huge is family…. It's very,...

There's a season for stress and sadness, and we're heading into it. "One, we have less light [this time of year]; people then have a tendency toward seasonal affective disorder, especially those who live north of Washington, D.C., " stress management expert Kathleen Hall, Ph.D., of The Stress Institute, told weather.com. "The second thing you have is the holidays, and all the stresses associated with [them], first being finances, and the second thing that is really huge is family…. It's...

(Instagram/lizzywonone) If there’s one perk to the season's first winter storm, it might be this: Chilly weather might cause your body to burn fat — and help you lose weight. Here’s how: When you’re cold, your body has to work harder to keep your core temperature up. You shiver, which burns five times the number of calories as resting, according to LiveScience.com. Cold also activates brown fat — the “good” type of body fat that burns energy, rather than stores...

As Forrest Gump famously said: “life is like a box of chocolates.” But, can you imagine life without any chocolate? According to a recent Chicago Tribune report, the world could run out of chocolate as early as 2020. The report says demand for chocolate is far surpassing the supply. Around the world, more people are eating more and more chocolate. According to the International Cocoa Organization, in 2010 the Chinese ingested 40,000 tons of cocoa. That number is expected to...