<human>:  What is the most effective exercise routine for someone who wants to start getting fit?
<bot>: The most effective exercise routine for someone who wants to start getting fit is to begin with moderate intensity aerobic exercise, such as walking, jogging, or swimming. This can be combined with strength training, such as using bodyweight exercises and free weights, three to four days per week. Doing the right combination of aerobic and strength training exercises can ensure maximum result. Additionally, it is important to make sure to stretch adequately before and after each workout, as proper stretching can reduce the risk of injury and improve flexibility. Taking a day off in between workouts is important as well, as it will allow your body to rest and repair itself.