In a dispute about what helps to wake up better, coffee or ... enough sleep, scientists clearly prefer sleep. A person who sleeps enough at night is much easier to wake up in the morning. But that's not all, scientists have told us what is harmful and useful sleep.

Attacks of sleepiness, which are often observed after dinner, is also better to treat by sleep, say scientists.

Many of us (unless we are residents of the Mediterranean, among whom there are many fans of the afternoon siesta) at this time are in the office or simply in the heat of labor.

Therefore, we prefer coffee after lunch or instead of lunch, so as not to fall asleep at the desk.

But their scientists at the University of California decided to compare the effect on memory of 200 milligrams of caffeine (about the same amount in one cup) and 60-90 minutes of afternoon nap.

Researchers have found that sleep makes our memory better, increases concentration, improves other cognitive abilities, and here coffee, maybe, invigorates, but does not affect memory, or makes it worse.

Physicians have suggested that caffeine does not provide information to the normally delayed long-term memory.

And all because it increases the content in the hippocampus of such an important neurotransmitter as acetylcholine, which inhibits the process of memorization. In this slow, deep phase of sleep, the level of acetylcholine decreases. It is especially important for parents to learn. Children need even more sleep after dinner, especially schoolchildren. They should sleep after school and before doing lessons. The effectiveness of training will increase.

nedug. en.

Keywords:.