4. Gym Sessions Are Not Intensive Enough

If you are capable of reading a book or a magazine while jumping on the treadmill, it probably means you are doing something wrong. A person who is working out in a gym cannot multitask – you have to concentrate on your exercise in order to understand if it requires the right amount of effort. Sweating while reading? This is hardly possible. Put aside your magazine and stop talking to your gym buddies – do sports instead!