Get exercise. Gentle exercise during treatment, such as regular walks, can help with both the mental and physical effects of treatment. After treatment is completed, increasing your exercise gradually will help improve your fatigue and rebuild muscle tone. Getting your circulation going may also help with chemobrain, the mental fogginess noticed by some patients during and after chemotherapy, and it can certainly improve your mood and your outlook on life. Try yoga, tai chi, swimming or water aerobics. Be physically active for at least 30 minutes every day. If you are having difficulty exercising or aren’t sure what to do, request a referral to a physical therapist from your medical provider.