I was reading over the New York Times and starting reading an article by Gretchen Reynolds titled “Bones?Is Bicycling Bad for Your “. Ms. Reynolds writes about a study Aaron Smathers did that sudied bone density amongst cyclists and compared the results to other sports participants. I have posted information about this subject previously from Dr. Mirkin.

Thinking of this from what I know about metals, density is not the only factor one has to consider when comparing strengths and characteristics about materials. Much like bike frame materials, our body’s frame has many properties that just one measurement does not describe.

Aaron Smathers observed first hand from crashes he experienced but I was somewhat wondering why he was racing just six weeks after breaking his collarbone.