As reported by Engadget:
iPod thumb? ... could very well be the cause of discrete repetitive stress injury according to Carl Irwin of the British Chiropractic Association. He set the record straight for ... Apple MP3 player inflicted pains: “The action needed to move the wheel on an iPod is totally unnatural and effectively separates the joint in the thumb every time you use it.” His patients apparently have had iPod-related RIS issues not only in their thumbs and fingers, but as far up as their elbows and necks....
I really thought I was reading a joke when I first saw this ... but it is real ... and this chiropractor is actually making this claim.
I modified the title of the malady to Pod Induced Stress Syndrome
This really just speaks for itself and the utter stupidity that the iPod is bringing to surface as it filters more and more into pop culture.
I have had a growing malady myself; Bristish Syndrome. It is the stress caused by Brits who sue because they don't like Americans or American made products.