Although the exact cause of autism is unknown, genes are thought to play a role. For that reason, siblings and some half-siblings of individuals with autism may be at a higher risk for developing autism, according to recent research.

Almost four million grandmothers live in homes with their grandchildren. About a third of these women are also the main "parents" for their grandchildren, which can take a toll.

A great deal of research has been focused on cancer risks among people living with diabetes. Recent studies examined the impact that a certain diabetes medicine may have on the cancer risks of diabetes patients.

All types of preventive medicine offer benefits and risks, and vaccines are no exception. But often, the risks related to getting a disease may be greater than the risks of the vaccine.

Once a woman enters the stages of labor, there is no telling how long it might be before the baby arrives. If her labor lasts a long time, is it safe for the woman to eat or drink?

People with HIV have weakened immune systems, so they are more likely to catch harmful diseases like tuberculosis. However, new research suggests that a certain prevention therapy could significantly reduce that risk.

As people get older, a good night's sleep can be harder to come by, but exercise may offer a restful solution.

Dengue fever affects millions of people each year in the world's tropics and sub-tropics. The US isn't usually at much of a risk, but Florida has seen several cases so far this year.

Melanoma — the most dangerous type of skin cancer — is one of the fastest growing forms of cancer in the US. And while it’s most common in white people, melanoma is also seen in Hispanics and blacks.

Drug abuse can take a serious toll on a person’s health and ability to function. Worldwide, the abuse of opioids is far greater than the abuse of any other drug.