High levels of depressive symptoms are common among heart disease patients. Rather than a side effect of heart problems, depression may be a serious risk factor.

More people die of lung cancer each year than any other kind of cancer. The survival rate among women, however, is better than men — and the reasons aren't exactly clear.

Before going through heart surgery, patients often have infected teeth pulled to avoid infection after surgery. However, this preventive measure may actually be causing more problems than preventing them.

Treatment options for food allergies are limited, especially for people with more than one food allergy. Recent research has uncovered a medication that may help people control multiple food allergies.

Antidepressant medications allow millions of people to live more fulfilling, happier lives. Still, these medications have their side effects, some of which may be more common than once thought.

Many young women today don’t worry too much about how old they will be when they have children. But for women with the gene for breast cancer, waiting to decide might have dire consequences.

Some patients who've had their thyroid removed experience a drop in calcium, a mineral that strengthens bones. Whether that drop is linked to low levels of vitamin D, which helps the body absorb calcium, hasn't been clear.