Safety helmets are compulsory for Tour de France riders, I don't know if they are generally required in any particular countries. (If anyone does know please let us know).
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Some say it should be the individuals choice whether to helmet up, buckle up etc. My answer to that is if you do suffer avoidable injury it is the the NHS paid for by us, the taxpayers, who will pick up the bill.
Roger.
Australia has a mandatory helmets rule - to the detriment of the numbers cycling regularly.
I can see the sense of helmets in a risky environment - e.g. mountain biking / off-road cycling / road racing / riding in a fast bunch. For general road riding, there's no evidence to show that a helmet makes you any safer.
My risk assessment :
1. helmets make your head bigger and heavier and therefore more likely to make your head hit the road and hit it harder if you come off.
2. a helmet can't stop your brain moving about inside your skull in the event of a hard knock so is unlikely to prevent a concussion.
3. your skull is your very own mips protector, custom designed to protect your brain, with a slippy outer cover (hair, skin and blood)
4. countries with the highest rate of helmet usage have the highest level of head injuries - USA, UK.
5. countries with the lowest rate of helmet usage also have the lowest rate of head injuries - Netherlands, Denmark
6. research has shown that drivers are less careful around cyclists if the cyclist is wearing a helmet.
I have had to go to hospital after coming off on my commute - for broken bones in both hands. But I pay my taxes and cycling keeps me very healthy, so I don't feel guilty about using the NHS as a result of cycling.
By all means wear a helmet if it makes you more comfortable, but recognise that it's effectiveness is limited.