HER2-positive breast cancers are more aggressive forms of breast cancer. These tumors contain a protein that promotes cancer cell growth. HER2-positive breast cancers can also be driven by the hormone estrogen.

If you have trouble going to sleep or staying asleep, you're not alone. Many people know how frustrating these problems can be. But sleep problems aren’t just annoying; they could be unhealthy.

We’ve all heard that exercise is good for us. Yeah, yeah…but the couch is more fun, right? Well, there’s a new reason to leave the couch behind.

More than two million Americans learn they have skin cancer every year. And the most serious form of skin cancer – melanoma – kills more than 9,000 people in the US each year.

Indoor tanning is a dangerous practice. Why? Because the artificial rays, like the sun itself, increase the risk of skin cancer, including deadly melanoma.

Do you believe in miracles? Do you believe that God is in charge of your fate? If you were nearing the end of your life, would your beliefs affect which treatment you received?

Lung cancer doesn’t go away easily. Even after surgical removal, this cancer can return. It's really important that these returning cancers be detected -  and the earlier the better.

PSA tests are no longer recommended for men as screens for prostate cancer. Those are the new guidelines released today by the American Urological Association (AUA).

Prostate cancer is the most common cancer in men. Fortunately, it’s not a fatal cancer for most men. New research has found that one medication that’s used to lower cholesterol may also lower prostate cancer deaths.

Many clinicians have been debating the best way to treat advanced lung cancer. The question has been whether or not to give chemotherapy and/or radiation alone, before or after surgery.