Experts recommend exercise 3-5 times per week. This can be as simple as a nice walk, simple bike ride, dancing or a cardio sport like tennis or basketball. In addition, experts recommend resistance training at least twice a week which may scare some people who never have set foot in a gym. It is quite simple – three sets of 8-12 repetitions of exercises that will condition major muscle groups. Start out at home with simple things — easy squats while holding onto a chair or doing bicep curls holding a bag of sugar. Folks older than 55 or those who have risk factors for heart or pulmonary disease should visit an exercise specialist before starting a major program.