Regular exercise: an effective means to reduce oxidative stress in old rats.

A healthy diet and regular exercise are among the major factors that influence quality of life (QOL) in old age. Exercise is believed to be beneficial to improve QOL, retarding age-related decline of physiological functions and preventing age-related diseases. Regular physical exercise can possibly improve age-related functional decline and delay onset of age-related diseases by attenuating potentially harmful oxidative damage and suppressing inflammatory processes even in older age.