False. Humans need decent hours of sleep to function properly and especially if you have school/classes or a job to attend to, you must get sleep so you can gain energy. In your sleep you breathe, and when you breathe for the amount of hours you actually lose weight.
It would be best to take it to a vet and ask if he has anything on him, or if he is going through some sort of emotional state
Answer:
definitely the heart
Explanation:
when you see "pumps blood throughout the body" you can think of the heart!
