Incorporate high intensity interval training (HIIT) into your workouts for a more challenging and efficient workout. Try a HIIT class or create your own routine using bodyweight exercises. </s>
Take a low impact class like yoga or Pilates to improve flexibility and core strength. These exercises are gentle on the joints and can still provide a great workout. </s>
<s>[INST] How can I mix up my exercise routine to keep it interesting? [/INST] 