Chronic fatigue is a nearly constant state of weariness that develops over time and diminishes your energy and mental capacity. Fatigue at this level impacts your well-being on an emotional and psychological level. Fatigue isn't the same thing as sleepiness, although it's often accompanied by a desire to sleep and a lack of motivation to do anything else. Fatigue is a symptom of an underlying medical problem that requires medical treatment. Most of the time fatigue can be traced to your inability to get restful and meaningful sleep.
Irritability is a feeling of agitation. Irritability generally causes a person to feel frustrated easily. Often this frustration results in a short temper. This is a common side effect of a lack of sleep or restless sleep. Irritability may be accompanied by additional symptoms.
Depression is not a normal part of growing older, and it should never be taken lightly. Unfortunately, depression often goes undiagnosed and untreated in older adults. A lack of restful sleep is known to be a contributing factor and sign of depression. Sleep disturbances, including insomnia or sleeping too much as well as tiredness and lack of energy are a few signs. This can even make the smallest of tasks take extra effort.
Sleep specialists say that sleep-deprived men and women report lower libidos and less interest in sex. Depleted energy, sleepiness, and increased tension may be largely to blame.
For men with sleep apnea, a respiratory problem that interrupts sleep, there may be another factor in the sexual slump. A study published in the Journal of Clinical Endocrinology & Metabolism suggests that many men who suffered from severe sleep apnea also secreted abnormally low levels of testosterone during the night. - WebMD
A lack of restful sleep causes numerous negative effects. Sleepiness causes accidents, lowers your mental capacity, can lead to serious health problems, kills your sex drive, contributes to depression, ages your skin, makes you forgetful, causes weight gain, increases risk of death, and impairs your judgement. If you snore at night and feel drowsy all day, then you may be one of 18 million Americans who have obstructive sleep apnea (OSA). Most people with the sleep disorder don’t know they have it, but left untreated OSA can lead to serious complications