Why Are Thin People Not Fat: Part 2

I'm documenting every part of the BBC Documentary 'Why are Thin People Not Fat' while I watch it. Don't forget to watch part 1.

Wow, I learned some CRAZY things in this episode!
Fat people used to be the survivors of society, having fat is a good thing, and...I probably would have never survived if I was born a few centuries ago. Phew, I'm glad it's 2012 ;) Watch the second episode here, and read my comments below :)

Why fat is good

Inside fat tissue, apparently, the fat cells have oil droplets stored -- which can be converted into energy if the body needs it. So, your fat is your body's built-in emergency storage system. The more fat you have, the longer you can go without eating. Apparently, one very obese man once lasted a year without food! (just watch the video, it's amazing).But the average person can last about a month without food.

Survival of the fattest

When food wasn't always readily available, people who were chubbier were more likely to survive, and pass on that gene to their children -- which could explain why a large part of the current population has a tendency to gain weight easily.

Survival of the thinnest

Fat storage used to help in survival,but that has changed over time. Nowadays, it's not needed to go without food for several days or even weeks. Nowadays, people who exercise and eat well are more likely to live longer.