According to the Americans with Disabilities Act of 1990, "disability" is defined as a "physical or mental impairment that substantially limits one or more major life activities".
•
DSPD was first formally described in 1981 by Dr. Elliot D. Weitzman and others at Montefiore Medical Center.
Delayed sleep phase disorder, a circadian rhythm disorder, formerly named DSPS
Major depressive disorder | bipolar disorder | The Big Sleep | Rapid eye movement sleep | phase | Sleep Chamber | obsessive-compulsive disorder | Disorder in the Court | Borderline personality disorder | Bipolar disorder | Wayne Sleep | The Big Sleep (1946 film) | Substance use disorder | phase (waves) | Phase-change material | Phase | Kingdom Hearts Birth by Sleep | Dissociative identity disorder | Congenital disorder | Attention Deficit Hyperactivity Disorder | 2010–11 UEFA Europa League qualifying phase and play-off round | Vision of Disorder | S phase | Social anxiety disorder | Sleep Dirt | Sleep | Posttraumatic stress disorder | phase transition | Phase (game) | Narcissistic personality disorder |