Sweat dreams?
While trying to get ripped is an admirable goal, new research reveals that doing it at night might just be muscling into your REM cycle.
High-intensity High-intensity workouts four hours or less before bed were linked to poorer sleep quality, later bedtimes and a higher resting heart rate.
They were also associated with lower heart rate variability, meaning less variation in the time between heartbeats, which is generally a sign of stress or poor recovery.
