Tobacco remains the leading preventable cause of cancer death in the U.S., despite a dramatic decline in smoking, a new ...

AI-powered heart sensor data from an Apple Watch accurately detected heart problems like weakened pumping ability and damaged ...

MIT engineers have developed a flexible drug-delivery patch that can be placed on the heart after a heart attack to help ...

In TODAY.com's Expert Tip of the Day, a trainer reveals the equipment-free hack to know you're exercising intensely enough.