Some people are capable of training physical skills while they dream – such as mastering a sport or even improving their performance on a musical instrument. But for that they have to be in a special state of consciousness known as 'lucid dreaming'.
Falling asleep in a bathtub appears to be a very bad idea for humans. Simply, because we can't breathe under water. But what about whales and other marine mammals — why don't they drown?
The brains of young people who use their smartphones or the internet too much sustain chemical changes. These change correlate significantly to diagnoses of addiction, depression and anxiety.
Anyone who is sedentary for an extended period runs the risk of his arms or legs falling asleep. How exactly does that happen and are there any risks?
Our lives seem controlled – even constrained – by time. But unlike other animals, humans can revisit the past and have visions of the future, as neuroscientist Dean Buonomano tells DW's Zulfikar Abbany.
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