From organic eats to better litter, be an eco-friend to your furry friend. Here's how.

The tobacco plant - responsible for millions of cancer cases - may actually offer the means to treat one form of the disease, a study suggests.

Although most women are told to examine their breasts every month for lumps, new research confirms that the practice – on its own – may do more harm than good. Self exams, and those by healthcare providers, actually produce an increase in benign biopsies, but don’t get the patient into treatment earlier or save her life.

New questions have emerged about whether long-term use of bone-building drugs for osteoporosis may actually lead to weaker bones in a small number of people who use them.

One more unwanted consequence of global warming may be an increase in cases of kidney stones in areas with rising temperatures, U.S. researchers said on Monday.

Increasing numbers of younger women continue to receive diagnoses of the most dangerous form of skin cancer even as the rate of new cases has leveled off in younger men, federal health officials reported yesterday.

A new study shows that many of the different genes linked to autism -- and many of the new autism genes discovered in the course of the study -- are part of a network that allows a child's brain to build new connections in response to experience.

Drug safety officials Tuesday imposed the government's most urgent safety warning on Cipro and similar antibiotics, citing evidence that they may lead to tendon ruptures, a serious injury that can leave patients incapacitated and needing extensive surgery.

A new study shows that a man's fertility starts to fall in his mid 30's, providing more evidence that like women, men, too have a kind of biological clock that can play a big role in women's chances of getting pregnant.

The nation’s pediatricians are recommending wider cholesterol screening for children and more aggressive use of cholesterol-lowering drugs starting as early as the age of 8 in hopes of preventing adult heart problems.