All people do it – from the day they are born to the day they die – and it is one of the things that they do not think that much about. People will have spent about 1/3 of their time on this planet asleep by the end of their lives. According to inventor Thomas Edison, that is a big waste of time. All animals need sleep to function well. Whether we are talking about a giraffe that just requires a little less than 2 hours per day or humans that think they require 8 hours to be at the top of their game, sleep is in fact a weird thing. Here are 10 crazy facts about sleep you never knew.
Individuals born blind do not see visual images when they dream; however, they do have an increased auditory, tactile and olfactory experience.