At a fighting gym in Pleasant Hill, there's a gallon of ointment that was originally developed for horses, although David Douglas uses it to fight.
It's called Xternal and it's his sponsor, which means it will be printed on the gear he'll wear Friday when he fights in the Stockton Arena live on television. It soothes muscles, and allows the 155-pound, 28-year-old, to work out the eight hours daily necessary to bench press three times his weight.
It's also made entirely from cannabis, like the seven grams of pot Douglas says he smokes every day.
Xternal is wildly popular among fighters. So is pot: many other fighters aside from Stockton native Nicky Diaz are regular tokers, according to Tarzan (and since he can bench-press 465 pounds, we will not argue). Diaz expounded upon the many benefits of pot in a 2009 LA Times interview.