Quand vous rêvez, votre corps est paralysé

When you dream, your body is paralyzed!

During the first 90 minutes of sleep, you move from light sleep to deep sleep. Then, you enter Rapid eye movement sleep (REM); the stage during which dreams occur. During this phase, the motor neurons and the release of certain neurotransmitters, the monoamines (norepinephrine, serotonin and histamine) are inhibited, which causes muscle weakness, rapid eye […]

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Le mammifère qui dort le plus au monde est le koala !

The mammal that sleeps the most in the world is the koala!

The koala sleeps between 18 and 22 hours every day, which makes ​​it the mammal with the longest sleep cycle in the world. Given that its life expectancy is 15 years, this animal spends 12 years of it sleeping. And to top it all, it spends most of its waking hours eating. What an exciting […]

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