AndyRew00 Hercules Diamond Member May 20, 2016 #1 A morning erection that is naturally caused as the brains enters the REM-deep sleep phase. At this stage, the body's skeletal muscle structure relaxes and causes hyper-vasodilation in the capillaries of the body, resulting in said erection.
A morning erection that is naturally caused as the brains enters the REM-deep sleep phase. At this stage, the body's skeletal muscle structure relaxes and causes hyper-vasodilation in the capillaries of the body, resulting in said erection.
