Sleep: How can this drink cheat your brain
We all experienced this feeling of energy afresh after a cup of coffee. However, this burst of vigilance is only a chemical confusion. Hide a well -made strategy behind its stimulating effects: Caffeine prevents our brain from preventing fatigue by harassing the role of adenocin, an essential molecule for sleep, Armela rangilac, indicate neurobiologists in media columns. Conversation,
If this mechanism seems harmless, then it is much deeper than it seems to its effect on our organism. Not only the caffeine is delayed, but it also changes the structure of the sleep, reduces its quality and reduces the sleep debt. So how does it actually work?
A chemical greed in the heart of the brain
To understand caffeine’s action, we must first be interested in the way in which our brain controls sleep. The more we wake up, the more molecule a molecule contains a molecule in our organism. Our cells are coming from energy production, it acts as an indicator of fatigue: when it reaches a certain extent, our brain triggers the need to sleep.
Adenosine is associated with specific receptors located in the brain, thus activating sleeping neurons promoting sleep. This process gradually slows down our brain activity and naturally prepares us to sleep.
How does caffeine miss the perception of fatigue
When we consume caffeine, it quickly enters the blood and reaches the brain in less than an hour. Its action is simple, but formlessly effective: it is associated with adenosine receptors rather than the latter, thus preventing its action. Result ? The brain no longer receives tired signal and we live in an artificial awakening.
This blockage does not mean that our need for sleep disappears, but it is temporarily masked. Once the impact of the caffeine has disintegrated, the accumulated adenosine resumes its role, often with a rebound effect that enhances the feeling of fatigue.
A permanent effect on sleep quality
If caffeine delays sleeping, it also changes the quality of sleep. By harassing the functioning of sleep neurons, it reduces the effectiveness of deep sleep required for physical and mental recovery.
In addition, it reduces the time spent in the contradiction, the phase where our brain consolves memories and controls emotions. Even if you fall asleep after drinking coffee, the resulting sleep will be less restructural, when you wake up, you consistently give up a feeling of fatigue.