>nightmarish competition of inhuman endurance. On multi-day ultra-endurance rides there is an issue where your neck will no longer support your head against gr

>nightmarish competition of inhuman endurance. On multi-day ultra-endurance rides there is an issue where your neck will no longer support your head against gravity, called Shermers neck syndrome. https://sportcoaching.co.nz/shermers-neck-a-guide-to-neck-syndrome/ https://sportcoaching.co.nz/shermers-neck-a-guide-to-neck-sy...