Two things cause people to be overweight, lack of exercise and an over-active knife and fork.
Agreed that lack of exercise plays a role but you don't lose weight by exercise alone.
And what causes the over-active knife and fork? Appetite? And what influences appetite?
The over-active knife and fork is caused by greed.
And what causes greed?
Do you get many vegan fatties? Are the Chinese generally thin or fat? Are the Americans generally thin or lard buckets?
Oh christ, I viewed that video, I'm about to heave ... arrrgggghhh ... you rotten swine.