Although some insurance companies announced that adult children could stay on family plans starting months sooner than the law requires, many employers are choosing to wait to implement the changes.

Arsenic is so common in groundwater in Bangladesh, Nepal, western India, Myanmar, Cambodia and Vietnam that their drinking water has been called “the largest poisoning of a population in history.”

Half of all Americans have gotten their high blood pressure under control, according to a new study.

A study comparing medications taken by normal weight, overweight and obese Americans found that obese people over 40 took more than those of average weight.

Those who used indoor tanning devices were more likely to develop melanoma than those who did not, a study found.