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 several rules you have to follow when constructing a deck: 1  Your deck must have a minimum of 60 cards. 2  Your deck may only contain 4 of any card. The only exceptions of this rule are the Basic Lands or if a cards text contradicts this rule (such as Relentless Rats).