We all need regular exercise to keep fit. But if we study all day, we don’t have time to run, swim, lift weights, or play basketball. What can we do to stay in shape? One thing we could do is walk more often. Walking is good exercise. Instead of going to school by car or bus, we could walk. During recess, we could go outside and stroll around before we go back to class. Instead of taking the elevator in buildings all the time, we could use the stairs. Another important thing is to take breaks from studying. If we sit at our desks or in front of a computer for a long time, we should stand up and stretch our arms and legs once each hour. If we stand for a long time, we should sit down and stretch our backs
