There's no question about whether sleep is important for heart and brain health. Study after study has shown that it is.

One of the best-understood connections between sleep position and heart and brain health involves sleep apnea, where breathing stops and restarts during slumber, Redline said. "Most people with ...

There's no question about whether sleep is important for heart and brain health. Study after study has shown that it is. Questions about the importance of how you sleep – on your back, on your ...