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.
There are four queens in a standard deck of 52 playing cards. There is a queen in each suit: spades, hearts, diamonds and clubs.Each queen has a different appearance and is in a different pose.here are 4 Queens in a deck of cards which are the Queen of Spades, Queen of Hearts, Queen of Clubs, and Queen of Diamonds.