Irritable, nervous and sensitive. It is the description of the state of any human being after a sleepless night. When we don't sleep, our brain pays for it and reacts disproportionately, according to a study published in the journal Current Biology.
In fully relaxed conditions, when the muscles and tendons are stretched, the hand assumes a position that is neither fully open nor fully closed. Its degree of opening depends on how it is supported: if it rests on the back, it tends to remain semi-open, because the fingers fall onto the palm under their own weight; if it rests on the palm, then the weight of the hand and arm crushes it so that it remains practically open or, conversely, closed into a fist.
Researchers are intrigued. Do they sleep like people? Do they switch off the brain or keep a hemisphere awake? Although without definitive answers, they...
When we sleep, the brain does not completely disconnect from the outside, but keeps active, more or less slowed down, numerous neural circuits, including sensory systems. It is a security mechanism that has been preserved throughout evolution.
"Spaniards sleep an hour less than other Europeans" Eduard Estivill, a 51-year-old from Barcelona, is a specialist in pediatrics and clinical neurophysiology. Since 1989 he has directed the Sleep Alterations Unit of the Dexeus Institute in Barcelona. His book "Sleep, child" has sold more than 200,000 copies in three years.
Danni Büchner is invited to Sam Dylan's Halloween party. But the "Goodbye Germany" emigrant has no desire for many other party guests. And find clear words.
