Melatonin
How to define a lack of melatonin in the body? 
The level of this hormone decreases with age. Its production may be affected by many diseases, changes in living conditions, employment, irregular work, and so on. The lack of melatonin can cause disruptions of biological rhythms, sleep problems, and depression. All of this can negatively affect human health and quality of life.
Sleep is a natural state of the human body, and sleep disorders can lead not only to chronic fatigue but also to more serious problems associated with impaired functioning of the human body's immune system. The main problems associated with sleep disorders:
- reduced performance
- increasing the frequency of colds
- sudden mood swings
- weight loss
- reducing the length of a person's life
That is why melatonin is considered a dietary supplement, which is not only desirable but also mandatory for elderly people.
How to use melatonin in the right way
Throughout the world, melatonin is allowed to be consumed only as a dietary supplement to the daily diet. The content of the active hormone in different forms and from different manufacturers may vary. This depends on the goals being pursued. To restore sleep, you need to take the substance with the maximum dosage and for a long time. And when you change the time zone, it will be enough to use a couple of small doses during a short course.
Things to know about melatonin
Melatonin should be taken in the evening when its production in the body increases. If you drink melatonin during the day, you may feel sleepy, as well as slow down the speed of reactions, which is considered to be side effects. When choosing a dietary supplement, specify the amount of active substance, additives, and other components, and the cost.
Melatonin has an excellent reputation in the pharmaceutical market as a high-quality chronobiotic drug that can normalize problems with sleep. The drug can be used for various violations of biorhythms, to normalize sleep stages in different time zones. Melatonin has a positive effect on depressive states. The main advantage of the drug is its proven safety, excellent tolerance, and a minimal number of side effects.