Sleep much ? Top 10 reasons to sleep
1. Irritability: "Complaints of irritability and [emotional] volatility following.
2. Headaches
3. Inability to learn
4. Weight gain: People who are underslept seem to have hormone imbalances that are tied to increased appetite, more cravings for high-calorie foods, a greater response to indulgent treats, and a dampened ability to control their impulses -- a very dangerous combination.
5. Poor vision
6. Heart disease
7. Slowness
8. Infection
9. Economic risk-taking
10. Overproduction of urine