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.

It is called the silent killer, presenting few symptoms until there is serious physical damage. One out of three Americans suffer from hypertension and many of us don't even realize it. What qualifies as "high blood pressure," and what do the numbers mean? Panelists discuss the latest in diagnosis and treatment in this episode ofSecond Opinion.