keydates said:Sounds a little risky to me...but I'm not a doctor.
Thanks for the reply, but I don't mean injecting it, I mean naturally occuring adrenalin that seems to be induced during very competitive situtations.
Has anyone ever been cruising along, struggling for motivation, then half a dozen guys blow past you and snob you off? When this happens to me I usually get a huge surge of EVERYTHING (including adrenalin), then I ride my guts out for the next 20 miles, either chasing or dropping these guys -- it's great fun 😄
During these situations (and racing), I seem to be able to sustain a slightly higher heart rate.