How long would it take without eating/drinking would it take before you collapse?

Question

No, I am not going to starve/dehydrate myself.

It's just out of curiosity.

Answer 1

When you go through starvation, the body begins to consume its reserve of fat buildup.  The first 3 to 5 days, you'll manage to stay conscious, but weak.  At around 7 to 10 days is when you begin to collapse from lack of water and vital nutrients, because your body had absorbed all that it can from your fat reserves.  When you look at pictures of malnourished people going through starvation, their bodies had begun to feed on itself to keep themselves alive.