If you're reading this blog, you're probably already convinced of the health benefits of daily cycling, or cycling for daily transportation, but perhaps we need to be having a more explicit discussion of the physical costs as well. I'd wager that most would agree that "active" injuries like tendonitis are somewhat easier to swallow than the long-term health effects of a sedentary lifestyle (obesity, diabetes, etc.), but I suspect there are folks out there who want or need to start using a bike instead of a car, who might well do serious injury to themselves, thus preventing them from getting back on a bicycle. It's certainly something to be aware of. As our mothers used to say: an ounce of prevention equals a pound of cure.
Oh, and I found the image here.