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.
Hearts Contents: The Rules of Hearts are fairly simple, and the game requires no more than a standard deck of cards and four players. Knowing What to Pass and what to hold can make a big difference in how a hand plays out. An understanding of the Strategies involved in Hearts will help you win game after game.