While no amount of physical activity can stop the aging process, a moderate amount of regular exercise can minimize the physiological effects of a normally sedentary individual's lifestyle, limit the development and progression of chronic diseases and disability, and increase active life expectancy. Muscle strengthening, flexibility and aerobic exercises should be suitable for older individuals. In addition, individuals at risk for falls or movement disorders should also do special exercises to improve balance. The intensity and duration of physical activity should initially be low for people who are severely dehydrated and have chronic conditions that prevent them from performing basic physical activities. Furthermore, the intensity of the exercises should be individualized and adapted to the preferences of the elderly. Incorporating behavior change principles into the design and implementation of exercise and physical activity programs will increase the individual's likelihood of initiating and maintaining a regular exercise and/or physical activity program. Social policies should be planned to maintain the physical function and improve the general health of the elderly with chronic diseases and disability. All older people, with and without disabilities, should be encouraged to develop a personalized physical activity plan that meets their needs and personal preferences.