One of Leonardo da Vinci’s secrets was hidden in special sleep scheme: he slept 15 minutes every four hours; this way he cut his daily sleep time from 8 to 1.5 hours. Due to this scheme he saved 75 percent of his sleep and, hence, extended his life time from 70 years all the way up to 100. Nicola Tesla slept for 2 hours a day, starting from age 19, and had enough time to do a lot during his life. By far not everyone can handle such schedule for long. Continue reading »

French scientists have conducted an international study in seven countries and found, that lack of sleep undoubtedly leads to excess weight. This is explained by the activity of two hormones: Ghrelin responsible for hunger and Leptin reducing appetite. If one sleeps only 4 hours a day during two days running, the secretion of Ghrelin increases y 28%, while Leptin levels reduce by 18%. Continue reading »