I used the search engines on this site and also www.ask.com. There is a wealth of info on this subject. Once you get to your chosen search engine type in "Does radiation weaken bones?" then click search. Bones get brittle as we age. Poor diet and radiation also can have an effect.

DX 3-21-07 L tongue,SCC Stage IV (T3N2MO) TX Slash/Burn/Poison Method.
***Rapid Aggressive Recurrence 8-4-07 with same DX/TX. Life does not cease to be funny when people die any more than it ceases to be serious when people laugh. Never Give Up! ****UPDATE**** Our dear friend Petey passed away, RIP 9-2-07