During REM sleep, your heart rate increases, your blood pressure elevates, and your eyes move. REM sleep may also be the time when your brain processes emotions and solidifies memories.

While we dream during REM sleep, the brain is busy processing emotions ... I spent days trying to understand what the charts and graphs were telling me about my slumber, then finally came to ...

For example, each morning, you can review your heart rate, breath rate and sleep graphs with information about how much light, deep and REM sleep you had the night before. But all that data only ...