Originally Posted by EastCoastChris
I saw somewhere (Scientific American...NIH some other laymen's publication? ) that a meta study was recently published examining whether increased helmet use had any correlation with or causal relationship to increased injury rates related to increased risk taking behaviors. The meta study concluded no relationship.
I certainly ride faster/more aggressive on hard pack/icy stuff since using a helmet. If it increases risk is debatable, since being more relaxed/not tensing up in shitty conditions improves control.