We all have those days when we just don't want to leave the house . That is why treadmills are great. Every one in the family can use one. Sometimes when its raining you don't want to run but exercise is important and we need . Trust me i hate running in the raining and in the winter. My body cant handle the cold so i run on the treadmill. t is super duper safe and if you have obese children this will get them exited and they too want to work out. you can watch tv listen to music and even read a book while your not the treadmill because only your legs are moving not your whole body but you still get alot of exerciser same as runnig. SO have fun and you dont have to leave the house totally worth it and it tells you how many calories nad how may fat calories and how many miles and what speed your going. it is also very safe.