Nearly five million people in the United States are living with some degree of dementia. Over the next few decades, aging baby boomers are expected to push that number even higher. This episode of Second Opinion introduces a panel of researchers and healthcare providers, along with one extraordinary dementia patient, who explore the latest trends in diagnosing and treating one of the most frightening illnesses a family can face.

It is your body's engine, playing a critical part in your overall health and well-being. And like any engine, your heart can require an occasional tune-up. But what happens when it fails? Artificial hearts and organ transplants are the subjects of this episode of Second Opinion.

Cervical cancer is caused by several types of a virus called human papillomaviruses (HPV). The virus spreads through sexual contact. Most women's bodies are able to fight HPV infection. But sometimes the virus leads to cancer. You are at higher risk if you smoke, have many children, use birth control pills for a long time, or have HIV infection.