The best swimmers among female Ironman triathletes complete the swimming portion of the event in 50 minutes to an hour. At the World Championship, the cutoff time for all competitors is two hours, 20 minutes. Any participant who fails to complete the 2.2-mile swim within that time is eliminated from the competition.
Vitamin K: One of two naturally occurring fat-soluble vitamins (vitamin K1 and vitamin K2) needed for the clotting of blood because of an essential role in the production of prothrombin (a clotting factor).
B vitamins stimulate immune T cells that recognize and destroy pathogens. The research team examined how byproducts of bacterial vitamin synthesis, including some derived from Folic acid or vitamin B9 and Riboflavin or vitamin B2, could be captured by the immune receptor cells to fine-tune the activity of T cells.