Walking up and down the stairs to and from the 10th floor every day helps a lot. (The lift boy already thinks I am scared of this modern technology.) I also walk to any place where I can get in less than an hour, more when I have time. In many cities, walking or cycling is faster than the bus anyway.
I know people who go to the gym, and then take the car to go home and the elevator to their apartment. When they are hungry, they call for food. I never call for anything. If I want something, I have to go out and get it. The farther, the better, because it means I won’t eat that fat hamburger at midnight. (Unfortunately, it’s very easy to store chocolate at home.)
When I want to go running, I go to the park, the forest or the beach.
Over 41 years, I have saved thousands of dollars in gym fees, allowing me to travel around the world instead.
And honestly, almost always when I went hiking with a gym person, they were slow and gave up after 500 meters. Now, I don’t even accept walking partners anymore who say “I am so fit because I go to the gym every day.” I ask them to walk around the block once, and they usually collapse in the process.
Gyms seem to be a scam.