The money is in a different league these days, of course, but I have special memories of the 60s and 70s which players today don't have. There wasn't the same celebrity attitude and media exposure. We had a bit more freedom.
There are similarities between business and sport, in the pressures involved and in the fitness aspect too.
You can never turn the clock back and, since we're talking about mental health, I would stress that.
When you talk about obesity, there's so many things that can cause that. It can be a medical thing, or down to the individual. There's a lot of other things involved than eating a Mars bar.