Yoga has shown that it can be a good activity to relax your body and mind and it is often not too strenuous and the activities can easily be completed at home.
Other physical benefits of yoga include:
increased flexibility.
increased muscle strength and tone.
improved respiration, energy and vitality.
maintaining a balanced metabolism.
weight reduction.
cardio and circulatory health.
improved athletic performance.
protection from injury.
See some videos below that will get you started.