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.
A standard deck of cards consist of 52 cards and 2 jokers that means a total of 54 cards. There are 4 suits in a standard deck named as clubs (â£), diamonds (â¦), hearts (â¥) and spades (â ). Each suit has 13 cards from A, 2, 3, 4, 5, 6, 7, 8, 9, 10, J, Q and K.