I was watching Hawaii Five–O the other day when in a scene one of the stars (character name Steve McGarrett) cut a large piece of butter and plopped it into his coffee. When asked by the squeamish character Danny what the heck he’s doing he explains it as a Navy SEAL trick to boost cognitive function, alertness and energy. This practice with historical origins in Ethiopia and Tibet using tea with yak butter is now being brought to you by Silicon Valley entrepreneur Dave Asprey.
