If you suffer from global pain and fatigue, you'll want to increase the variety and amount of movement and exercise you do. Include forms of exercise in your daily schedule that gradually increase your flexibility and strength, without resulting in metabolic overexertion—in other words, without overdoing it. Once you're no longer experiencing pain and fatigue, you can enjoy a wider range of exercises.
The dangers to health of a sedentary lifestyle have been well documented and publicized. The new phrase "Sitting is the new smoking" is accurate and describes how being sedentary during the day has now replaced smoking as one of the most common health risks. Most significant diseases of our time—including heart disease, diabetes, high blood pressure, obesity, and many others—are much more common in populations that are sedentary.
But even under these conditions, there are ways you can exercise more without having to schedule a class or find time for the gym. Simple daily changes can have you moving more throughout the day.
Recently, scientists found short-burst interval training to be effective for those who don't have a lot of time to exercise. New research has suggested that short bursts of high-intensity activity may have a greater overall effect than 20 to 30 minutes of low-intensity aerobic activity.
You could, of course, join a health club, as long as you remember to attend. Remember, the most expensive health club membership is one that's never used.