I weigh 75.4 kgs, as of yesterday. I'm about 1.79 m tall so this is regarded as a pretty good weight for someone my height. My Body Mass Index is 23.2 so you wouldn't call me obese at all. I am conscious of a slight paunch and have taken up intermittent fasting, which I am told nicely moves the needle down.

This got me thinking about weight. Why are so many humans so thickset today? Why do some require two side-by-side seats when they fly?