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.
In the TCG, there are 9 cards per pack, 24 booster packs per box and 12 display boxes per case. The set contains 100 cards, or 106 in the Master Set. This comprises: 1 Ghost Rare; 5 Ultimate Rares; 8 Secret Rares; 10 Ultra Rares; 14 Super Rares; 20 Rares; 48 Commons; Galleries