A study in the Journal of Sleep Research found that a single night of sleep deprivation caused subjects' reported hunger levels and their appetite-stimulating ghrelin levels to rise drastically. Other studies have reported similar findings for subjects who slept poorly over multiple nights.
Zumba has become one of the most famous workouts in the United States and in other parts of the world. The workout is a cardio based aerobic class infused with Latin dance moves like salsa, meringue, and hip-hop. Zumba can even be seen featured in Wii games.