From Mark’s Daily Apple:
How to Get Fitter, Faster and Stronger With Quality Sleep
Here’s some information for the people who miss out on sleep to catch an early morning workout, who stay up late reading fitness blogs and trading fitness memes on Reddit, who tell themselves that all that yawning they do in between squat sets is just weakness leaving the body. Did you know that sleep deprivation also hampers our athletic performance? That bad sleep makes us slower, weaker, and less coordinated? That sleep deprivation reduces the effectiveness of our workouts, and sometimes even reverses their beneficial effects? That it can hamper our ability to build lean mass?
Let’s look at some of the research.