Earlier quoted context omitted.
> If you don't wear a helmet, don't worry about it, it doesn't mitigate that much risk. The exercise benefits of biking do way more to increase your life expectancy than skipping a helmet does to reduce it. This is very, very stupid advice.
The assumption is that wearing a helmet somehow reduces the odds of exercise. Just keep your helmet with your bike, and you'll never forget it. I've been cycling to work for years, which which has varied from 10 miles one way, to 1 mile. I always wear my helmet, and in all these years an many thousands of bike miles, it only been "useful" once. A drainage grate was covered over with leaves, I didn't see it, my front…
Helmet paranoia DOES reduce the odds of exercise. On a group level, at the level of public health, that's PRECISELY what it does. I encourage you to read about it, that's why they call it the helmet paradox. This piece is a nice summary.
http://www.howiechong.com/journal/2014/2/bike-helmets
Bike helmets protect our heads, but they also do the following:
1. increase your chances of getting in an accident
2. discourage cycling
Here's what to do:
1. If you want to be healthy, ride a bike instead of driving.
2. If you want to be even healthier, consider maybe putting on a helmet, but be mindful it doesn't increase your risk-taking behavior.
I choose option 2, but option 1 is also great.