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.
Best Answer: There are 52 cards in a standard deck of cards. There are 26 black cards and 26 red cards in a deck. There are 4 suits (Spades (black), Hearts (red), Diamonds (red), Clubs (black)), each consists of 13 cards, and they are Ace, King, Queen, Jack, 10, 9, 8, 7, 6, 5, 4, 3, and 2 in a deck.