A couple hours of pumping the peddles usually gets me feeling pretty high.
Not while I'm riding, but only after I've stopped.
Light headed, hard to focus & communicate, even a little stumbly depending on how hard I've been riding.
Now, I don't altogether object to the sensation, but it can really be a nuisance sometimes.
If I'm riding a few hours to get somewhere, I don't always want to be feeling like I'm High when I get there. I think it's even cost me a job when I rode 100 miles & showed up for an interview in that state.
Of course, there is an up side to it...
So, anybody else get high off of riding their bike?