3. Mix It up

Your body will get used to the same exercises day in and day out. Mix it up with some different exercises to ensure that you're working a range of muscles and you're not being complacent with your exercise regime. A while ago, I found that I had been spending quite a while going from bike to cross trainer to weights and then I gave rock-climbing a go. Let's just say my legs were super sore for a week but it goes to show how you need to push your body to work new muscles every so often.