Brain activity can deprive a person of normal healthy sleep.
Scientists have figured out why some people develop insomnia. It turns out that their brain is fundamentally different from the brain of an ordinary person, reports The Tech Times. The brains of people with insomnia are more active during the day. For this reason, it is difficult for him to “turn off” at night. This was proved by a survey of 28 people aged 50 and older.
18 had had insomnia for at least a year, and 10 believed they were sound asleep. The scientists decided to measure the brain plasticity of the participants. For this, stimulation of the motor cortex was carried out. At the same time, involuntary movements of the thumb were monitored. The participants were then taught to move their fingers in the opposite direction compared to the direction of involuntary movements. The stimulation was repeated.
As a result, people with less plasticity of the motor cortex were able to move their fingers in the other direction, which surprised scientists a lot. They expected something else. At the same time, the brain of those who did not sleep at night showed increased activity. For this reason, people could cope with the task. However, if you give them a more difficult task, they will fail, experts are convinced.
Increased brain activity is simply not able to compensate for the lack of sleep. When it comes to brain plasticity, sleep is critical to it. Therefore, with a lack of sleep, brain plasticity decreases.
Experts have not yet concluded whether lack of sleep provokes increased brain activity or vice versa.