Work: sports-related startup. Perso: trying to swim (not just float around) in open water every day all year round, essentially hacking my mind (meditation) & b

Work: sports-related startup. Perso: trying to swim (not just float around) in open water every day all year round, essentially hacking my mind (meditation) & body (gasp reflex) to withstand the cold temperatures. Currently 12 deg C. [Edited to add: http://www.coldwaterswimming.com http://www.coldwaterswimming.com]