Going to the Gym was not a common activity for public then.
T'was only the place for body builders and professional athletes

Now it is a common place for everyone who want to lose weight,
an ultimate reason.
What is wrong with humanity that they gain too much weight?
They have better locks to their houses, sound and smell proof walls so no one from outside hears and smells what's cooking inside.
Rich and working class people close their houses and eat all their food inside their houses and dine out in expensive restaurants
and drink all the good wine they could.
They throw away the left overs and run all the way to the gyms and/or
walk long distances every morning and evening to burn those calories.
So it's a process now, eat and burn through physical exercises.

But we forget the true principle of losing weights easily.
In fact it may never require going to the gym or long walks to lose those weights.
We can simply open the door of our houses, at least once, every day and just walk across to our neighbors and to the streets where the needy and homeless live.
SHARE our food and drink with them and we will be surprised
how fast we lose those stubborn weights.