You might get a bit sluggish as you age since your energy levels may naturally decrease. But staying physically active as you age is a necessity, so your body keep up! Being physically active can help you avoid a lot of chronic diseases such aching joints, as these can lead to other illnesses, such as osteoarthritis. There are many ways to avoid joint pain; build some muscle, shrink your belly, eliminate the junk food, and drink lots of water. Heart failure is another result of unhealthy eating and a concern as we naturally age.