Excessive consumption of Caffeine-fueled content, lack of sufficient Caffeine replenishment, and poor sleep hygiene.
Extreme mood swings, crippling fatigue, and an unrelenting desire for more.
Self-inflicted, through the judicious application of Caffeine patches, IV drips, or an all-nighter at your favorite gaming marathon.
Drink responsibly, sleep regularly, and avoid all forms of Caffeine-based entertainment.