It&#x27;s easy: laws or not,  wear a helmet if you value your life (or brain). Every cyclist I know has a story of unexpectedly ditching. Even some of them at a dead stop, embarrassingly. I personally have cracked a helmet and walked away.<p>You are higher up, have less stability, and as good as you are you don&#x27;t control many types of collisions (negligent&#x2F;distracted drivers). It only takes a very minor fall and some bad luck to end up with brain swelling, cracked skull, or a corpse.<p>Here is a helment advocacy group&#x27;s take with links to relevant statistics, opposing views: <a href="http:&#x2F;&#x2F;www.bhsi.org&#x2F;shouldi.htm" rel="nofollow">http:&#x2F;&#x2F;www.bhsi.org&#x2F;shouldi.htm</a>