To increase it you can set timers on when to do something like set a timer for 12 am and name it "go for a bike ride" and if the weather changes you change, If you need to take a run go up and down stairs, or you can dress properly for the weather. If you have a minor injury you can take a break and eat healthy or find something to do like if you break your arm do squats and if you break your leg or sprain your ankle you can work on muscles in your arm. If you travel you can work out when you can when you get to your destination, Lets say your going camping, Go on hikes. If you fly when you land and go to where you need to go, for example your grandparents, take a run around the house.
