Not enough sleep or disruptions to the sleep-wake cycle (such as those that may occur with shift work or travelling to a different time zone) cause the physiological state known as fatigue. Staying awake for 24 hours leads to a reduced hand-to-eye coordination that is similar to having a blood alcohol content of 0.1.
There are 13 hearts in a standard 52 card deck. There are also 13 diamonds, 13 spades and 13 clubs.
The deck consists of a total of 108 cards of four colors: red, green, blue, and yellow. The ranks in each color are 0-9, with two of each number per color, except 0 which only â¦ appears once per color.