Inside the elevator: take less elevators, consume less electricity, climb more stairs and exercise more.

Negative first floor: less elevators, more health.

First floor: Take fewer elevators and climb more stairs, and you will live a long life if you are strong and healthy.

Second floor: Take the elevator to exercise less, and walk more is good for your health.

Third floor: Take fewer elevators and climb more stairs, which is energy-saving and healthy.

Fourth floor: take less elevator exercise, take two more steps, and live a long and healthy life.

Fifth floor: You won't regret practicing your legs on the stairs.