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'.
Ever since the mobile phone entered our lives in the new millenium, anxieties about its ill effects have abounded. But what do we actually know about the health risks of mobile phones?
It's the summer solstice in the northern hemisphere – the longest day of the year, but also the shortest night. That's a downer considering how great sleep is. So don't nod off 'til we tell you how to improve your z's.
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?
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?
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