While it’s true that routine can provide a sense of ease and security the same old can also turn to boredom. And when it comes to working out routine can be downright toxic. New exercisers often see quick fitness results such as weight loss and increased muscle strength while engaging in the same workout day after day. However after several weeks following their fitness routines they often become frustrated as the gains begin to dwindle. Eventually dieters scales become frozen on the same number or weight lifters are stuck at the same weight size. They hit a plateau. Cardio exercise intensity can easily be varied through speed incline distance height etc. And of course the types of exercises are practically endless so exercisers should never have the excuse that they’ve exhausted their exercise options. Good cardio examples include: walking jogging swimming biking hiking and more.