Alcohol has long been used as a crutch in social situations, as a sleep aid or as a relaxant after a hard day at work. Unfortunately, the effects of alcohol on the brain and the body are often the opposite of why it was imbibed in the first place. This is especially true of the relationship between sleep and alcohol.
Alcohol is a depressant but it can act both as a stimulant and a sedative depending on the dosage and the person who is doing the drinking. People who are more lively and sociable after a drink or two are so because the alcohol has depressed the parts of the brain that control judgment.
People who have a drink to bring on sleep do fall asleep more quickly but this is only temporary. Sleep disturbances occur during the night as alcohol interferes with the different phases of sleep as well as the duration of sleep. There is a definite link between sleep panic attacks and alcohol consumption.
What are Sleep Panic Attacks?
Over 50% of those diagnosed with a panic disorder also suffer from sleep, or nocturnal, panic attacks. These are the panic attacks of the day transported into the deep dark night where the experience can be even more frightening. Waking up suddenly for no reason with a racing heart, belabored breathing, sweats and chills and the intense fear that death from a heart attack is imminent.
Even though the attack itself may only last minutes, the aftershock leaves the sufferer unable to get back to sleep. This happens once and maybe there is no harm done but should it happen a second time, then what would be the first thought on the third night? What if it happens again? Some sufferers of nocturnal panic attacks are so afraid of a recurring episode that they cook, clean house, read, watch television – anything to delay sleep.
Alcohol as a Cause of Sleep Panic Attacks
There are different stages one passes through during sleep which are differentiated by the function of brain waves. There is light sleep, rapid eye movement sleep or REM, which is when most dreaming occurs, and then there is a deeper level of sleep, or non-REM. There are several cycles during the night which are made up of the different stages. Alcohol disturbs the rhythms of these stages, particularly blocking the entry into REM sleep early on in the sleep cycle.
Nocturnal panic attacks usually occur during the deepest stage of sleep which is at its best in the first few hours of the night. By preventing the transition from non-REM to REM sleep, alcohol sets the stage for those vulnerable to panic attacks.
Alcohol as a Cause of Sleep Apnea
Sleep apnea occurs when throat muscles relax during sleep and cause a temporary cessation of breathing. The sleeper is jerked awake, thus restarting the breathing process and so falls back to sleep only to have the same happen as the throat muscles relax again. The more alcohol that is consumed before bedtime, the more the muscles relax during sleep and so the problem is made worse.
Sufferers of sleep apnea may awaken in panic, suddenly aware that they can’t breathe and so their heart beats wildly and they feel dizzy. This is what happens during a nocturnal panic attack and so the two conditions may become mistaken for one another.
All in all, alcohol should be avoided in the six hours before sleep otherwise sleep quality will be affected.
Sources:
"The Phenomenology of Panic." Panic: Psychological Perspectives. Ed. S. Rachman and Jack D. Maser. Hillsdale, NJ: Lawrence Erlbaum Associates, 1988. 11-34.
"Why a Little Nightcap Prevents a Good Sleep; A Survey Has Shown Six out of 10 Drinkers Are Unaware of the Link between Alcohol and Sleep Problems." Helen Rae. Evening Chronicle (Newcastle, England) 31 Aug. 2009
Zal, H. Michael. Panic Disorder: The Great Pretender. New York: Insight Books, 1990.
Hudson, Emma Sugar, Caffeine and Alcohol. http://www.panicattackneedtoknow.com/sugar-caffeine-and-alcohol-their-part-in-panic-attacks/
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