Tem42 comments on Wear a Helmet While Driving a Car - Less Wrong
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The numbers of traumatic brain injury (TBI) cases caused by falls are of about the same magnitude as TBI caused by motor vehicle accidents (CDC data, the relative frequency depends on age).
Would you recommend putting on a helmet as soon as you get out of bed in the morning for people in their 40s and older?
For some reason your link is not loading for me, but here is another CDC link: Percent Distributions of TBI-related Emergency Department Visits by Age Group and Injury Mechanism . Falls are big causes of TBI for the under four crowd and the over 65 crowd. The 5-14 and 45-64 groups also fall a lot... but only about half as much. But, also look at this: Percent Distributions of TBI-related Deaths by Age Group and Injury Mechanism.
Oh my god, look at 0-4-year old assaults, both ED visits and deaths. (Assault is the leading TBI-related cause of death for 0-4-year olds.) Some of those falling 4 year olds were assaulted.
Yes. You don't want to be a child of someone with low IQ and anger management problems.
Or worse, a step-child.