A few nights ago, during a very bad nocturnal hit, I tried running in place with O2. After being exhausted, I sat down and noticed the intense vessel constriction all over. I continued O2 while sitting and it ended quickly. I've done it every night since and believe it dramatically cuts down the time to abort. I admit, it would look pretty crazy to an outsider. 2am in my jammies, sucking O2 and running as fast as I can in place. I laugh at myself every time. But, hey, if it works, who cares.