They do help a lot[1], especially without helmets[2]. [1]: https://www.health.harvard.edu/blog/motorcycle-rallies-and-organ-donation-a-curious-connection-20230

They do help a lot[1], especially without helmets[2]. [1]: https://www.health.harvard.edu/blog/motorcycle-rallies-and-organ-donation-a-curious-connection-202301042870 https://www.health.harvard.edu/blog/motorcycle-rallies-and-o... [2]: https://pubmed.ncbi.nlm.nih.gov/33334475/ https://pubmed.ncbi.nlm.nih.gov/33334475/