About 15% people over the world take drug to help them sleep, and as many again take tranquillizers to calm during the day.
Sleeping pills work by slowing down the body’s central nervous system. In the right dose, they will send you to sleep. But the sleep they produce is different from natural sleep. Because abnormal rations of two phrase (orthodox and REM) are produced. Also the effect of the drug can last for several hours after you have woke up.
In addition, your body may gradually get used to the drug, so that you have to take more to have same effect. You may also find it difficult to stop taking these drugs because without them it can take days or even weeks for normal sleep patterns to return. And it is quite likely that you will sleep badly and perhaps get nightmares during that time.
Sleeping pills may make you drowsy the next morning, which can be dangerous it you operate machinery or drive a car. They can react badly if taken with some drugs. And they must not be mixed with alcohol. This combination can even kill you.
The most common sleeping pills and tranquillizers are barbiturates and benzodiazepines. Barbiturates and non-barbiturates Doriden and Mandrax are the most likely to suppress REM sleep and become additive. They also have more side effects and are much more dangerous if overdose is taken than benzodiazepines and other non-barbiturates. Because of these problems, many doctors have now stopped prescribing barbiturates. But the benzodiazepines and other non-barbiturates also interfere with the normal phases of sleep and can still cause some of the same problems.
Sleeping pills may be useful in some situation, perhaps to see through a bad period of stress. But insomnia almost always had a cause, and sleeping pills do not do anything to deal with it permanently. So avoid sleeping pills if you possible can.