"Ronni Bennett at the Time Goes By blog reports that one-third of people 65 and older fall every year. Many do not survive their broken bones.
Now comes a study telling us we elders are far from alone:
"'...in this four-month study, more than half of the college students fell during daily activities,' said Shirley Rietdyk, a profess of health and kinesiology, who only looked at young adults in this study.
The fall rate may be lower for older adults because they are more cautious due to the higher risk of serious, even fatal, injuries from falls. These findings also highlight that walking on two legs is a challenging task that is mechanically unstable, even for young, healthy adults.'"
Maybe we would be better off now if mankind had stayed on all fours. You can read more here."