Some two million U.S. high school students tried e-cigarettes last year, a rate that tripled in just one year, U.S. health authorities said Thursday.
The brain ages just like the rest of a body, says a new report that urges seniors to take steps to keep sharp.
People who are obese in middle age run a lower risk of developing dementia later, said a large and long-term study Friday whose findings challenge the prevailing wisdom.
Drug-resistant tuberculosis is a major health challenge across much of Africa, but a new medicine being pioneered in South Africa could be a breakthrough after decades of frustration.
The steep cost of caring for the elderly continues to climb. The median bill for a private room in a nursing home is now US$91,250 a year, according to an industry survey out Thursday.
Experimental tailor-made vaccines targeting melanoma patients' individual genetic mutations have given encouraging preliminary results, researchers have said.
An apple a day doesn't necessarily keep the doctor away. That's according to proverb-busting research that found daily apple eaters had just as many doctor visits as those who ate fewer or no apples.
Higher levels of pesticide residue in fruit and vegetables are associated with lower quality of semen, according to a study published on Tuesday.
Ebola has taken its greatest toll on babies. About 90 percent of children under age 1 who caught the virus in West Africa died from it, the first large study of the epidemic's impact on children suggests.