This is article released by IFLS, it revealed tha morning er33ctions or medically known as “nocturnal penile tumescence” is primarily caused by the activities of the nervous system and endocrine system.
Nocturnal penile tumescence happens during
Rapid Eye Movement (REM) sleep also known as deep sleep. When a person
is at his dreaming state, areas of the brain become active. The
activated parts send messages to the male genitalia allowing er3ction.
In addition, male testosterone levels are also at its highest in the
morning. This..click next page to read the remaing.