Yes it can. Yes, sleep deprivation can cause both irritability and mild euphoria. Studies show decreased sleep increases the amount of Dopamine in the brain, promoting an amphetamine like response. This wakefulness comes with a decrease in the brain's processing ability. Sleep loss is also associated with increased appetite, risk of stroke, and heart disease.
Yes. Everyone needs at least 7 hrs of sleep, less may affect your health.
There can be trigger. Other than sleeplessness. Prescription medications are one (antidepressants, stimulants, steroids, decongestants, asthma inhalers ; antabuse) as well as caffeine ; illicit drugs. Lack of sleep, menses, head injury, ms ; infectious diseases are other causes. Psychosocial stressors may include death of loved one, divorce, loss of work, trauma ; financial problems. Read more...