Sleep is not a break: what the brain does at night
It is often said that you need to sleep to recharge your batteries. This metaphor is inaccurate. The brain is not inactive during sleep. It is doing work that you cannot do when you are awake.
Understanding this work changes how we approach sleep: not as a luxury, but as a biological necessity.
What the brain does during sleep
Source: Walker MP. The role of sleep in cognition and emotion. Annals of the New York Academy of Sciences, 2009.
What happens when sleep is insufficient
Just one night of insufficient sleep is enough to measurably affect working memory, decision-making, emotional regulation, and information processing speed.
In the long term, chronically insufficient sleep accumulates a cognitive deficit that cannot be recovered simply by sleeping more on weekends.
To go further, consult our articles on the limits of an evening routine and on the continuity between nocturnal recovery and morning activation.
What MySynapz observes
Sleep is one of the central indicators of the MySynapz diagnosis. Its quality directly conditions the quality of cognitive functioning the next day.
Observing sleep quality means observing cognitive recovery at its source.
Sleep is not wasted time. It is time for reconstruction. And what happens at night conditions what you can do during the day.
Start with your MySynapz diagnosis to identify the priority levers for you.
1. Walker MP. The role of sleep in cognition and emotion. Annals of the New York Academy of Sciences, 2009.
2. Xie L et al. Sleep drives metabolite clearance from the adult brain. Science, 2013.
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