A tiny device, which can be inserted under the skin, may one day be able to signal the onset or spread of cancer, and alert doctors so they can take action.
E-cigarettes have been called a miracle that will truly help people stop smoking, and also a danger to public health. The controversy is complicated, as blogger Tom Glynn explains.
Relay For Life events are happening now. You can form a team, raise money, join the planning committee, or volunteer. Sign up and participate in your community and get involved!