Push it to the limit

No, It's not what you think, it's not about the song by Scarface. I just want to talk about the actual limit of your body.How long you can survive without eating or drinking? How long you can stay awake without sleeping? I have heard story about people who actually live up to 2 months without foods. Other people who stay up to 11 days without a single minutes of sleep. Although all of them have some outside factors that affect their results but no one can deny that it takes really strong wills to control your own body to complete those next to impossible tasks. However, all of us , by our nature, tend to listen to our body needs more than listen to our wills. Only in some special circumstances that we actually overcome our self. What if we can practice our self to listen to our inner sides rather than our bodies needs? The list of thing that we could do would be countless.