This disorder can make it hard to fall asleep, hard to stay asleep or both, even though you have the chance for enough sleep. It can drain your energy.
Disease
Amenorrhea
Absence of menstruation may be linked to an underlying, treatable condition. Learn about why it happens and when to seek help.
Disease
Ectopic pregnancy
Ectopic pregnancy occurs outside the uterus, threatening the mother's life. It can't continue normally. But swift treatment can prevent deadly blood loss.
Disease
Low sperm count
This health concern can make it challenging to start a pregnancy. Learn about possible causes and treatment.
Disease
Central sleep apnea
Find out how a mix-up in brain signals can affect your breathing during sleep, and learn how this sleep disorder can be treated.
Disease
Schizoid personality disorder
People with this mental health condition do not want to be with others. They stay away from social activities. They're limited in how they express emotions.
Disease
Dissociative disorders
These mental health conditions involve experiencing a loss of connection between thoughts, memories, surroundings, actions and identity.
Disease
Reactive attachment disorder
Reactive attachment disorder is when an infant or young child doesn't establish healthy attachments with parents or caregivers due to neglect.
Disease
Delayed sleep phase
Learn more about this sleep condition that causes a delay in usual sleep patterns.
Disease
Sleep terrors (night terrors)
These are times of screaming or crying, intense fear, and sometimes waving arms and legs during sleep. The person often sits up in bed, looking scared.
Disease
Jet lag disorder
Jetting across time zones can take a toll on your body's internal clock. Find out how to cope with fatigue and other symptoms while traveling.
Disease
Narcolepsy
Learn more about this sleep condition that causes periods of involuntary sleep, sleep paralysis and early rapid eye movement (REM) sleep.