1.1. Sleep disorders and relapse
substance abuse, Sleep disorders
DYSFUNCTION
Sleep disorders are the inability to get normal sleep in a suitable sleep environment. The most prominent clinical manifestations include difficulty in getting to sleep and maintaining sleep for a long time, waking up early and feeling tired after waking up, which sometimes lead to physical discomfort and even physical dysfunction (The neurobiological processes underlying sleep and substance abuse are intertwined, and alterations to one can have repercussions on the other (