Sleep is literally when your body repairs itself. It heals sore muscles. It strengthens your immune system. It organizes your memories. It releases growth hormone (good!) and removes cortisol (bad!). It controls your hunger hormone (too much vs too little). Sleep is crucial to living a healthy life!
The [realistic] goal is 7 hours or more. If you are getting less than 7, you are really reducing your ability to grow, heal, and remember. Over time, this becomes significant. It is not all about quantity though ...
Here are 3 quick tips to get better QUALITY sleep:
^ Alcohol before bed. Notice the higher heart rate in the early stages of sleep as the body works hard to remove the alcohol.
^ No alcohol before bed. Nice low heart rate from the get go!