So little is understood about the effects of chemotherapy on a developing baby that doctors are still learning about how safe treatment is during pregnancy.

Rheumatoid arthritis is a chronic disease, meaning it can last for years to a lifetime. Throughout the course of the disease, symptoms can get better or worse. Many factors can affect disease activity, including wealth.

Alcoholics can have trouble making mental connections due to reductions in white matter in the brain. Each year an alcoholic went without a drink, one percent of white matter grew back.

Being overweight or obese during pregnancy can put women at a higher risk for gestational diabetes, which increases the risk of birth complications.

Surgery to remove a child's tonsils or adenoids to treat sleep apnea is a relatively low-risk procedure. But the pain relief offered after the surgery requires careful supervision.

The risks related to drinking during pregnancy are not limited to fetal alcohol syndrome. A baby's exposure to alcohol before birth can also mean poor growth.

Severe anxiety and depression are obviously serious health concerns, but what about minor mental health issues? The consequences of minor symptoms may be more drastic than you think.

Many head and neck cancers, including nasal, can't be operated on because of where they are located. Some are too close to the brain. That's why radiation therapy is often used to treat these cancers.

U.S. Food and Drug Administration officials have approved Lucentis ( ranibizumab injection) as the first drug capable of treating a severe eye disease that develops in individuals with diabetes.