Walk, climb stairs, lift weights or work out on a weight machine for 30 minutes at moderate intensity for or more days a week. Prevents and treats back problems. Too much rest after a back injury weakens muscles. The more activity you can tolerate, the stronger your back muscles and the more quickly you can recover. Flexing and extension exercises strengthen and lengthen back and abdominal muscles.
Helps prevent glaucoma.
Three recent studies show that exercise works as well as drugs to reduce high pressure in the eye. That pressure can lead to acute and chronic glaucoma. Fights anxiety and depression. Exercise increases levels of feel-good brain chemicals, such as serotonin. It also lowers levels of adrenaline, which cause negative moods.