Exactly! That’s 400 calories a day for the average person. Combine that with less physical activity and you’ve just found the source of your problem. We can ev

Exactly! That’s 400 calories a day for the average person. Combine that with less physical activity and you’ve just found the source of your problem. We can even work it out: 1lb of human fat has ~4000 calories in it. If we assume that only 10% of those excess calories actually end up as fat thats still 70lbs of additional weight by the time you’re in your mid 20s.