But he stresses that keeping the joints healthy in the first place may be the key to running longevity.

CNN: No need to hang up your running shoes as you age

But a study out of Stanford University that looked at healthy aging runners found that running did not damage joints or leave runners less able to exercise.

CNN: No need to hang up your running shoes as you age

Lupus is an autoimmune disease characterized by inflammation of the joints, skin, major organs and central nervous system as the immune system attacks healthy tissues and cells.

FORBES: Lupus Treatment Evades Genentech, Biogen

Trans fat chance: There's something about stepping into the air-conditioned domicile of fast-food joints like Wendy's International that incites a twinge in the consumer conscience about healthy eating.

FORBES