If you do not have time for a fitness club, then the morning exercise at home is enough (push-ups, squats, abs), also good for the body. If he exercises more seriously, you can buy a treadmill or exercise bike. Now it is very popular in the world, because it is convenient. Thebikersride.com has a lot of useful tips on this. And I'm sure you can find time for sports even with a busy schedule. You don't have to devote very much time to it.