here is another example... last night i when paint balling with some friends. i had only been once before and i was re-thinking the fact of why i was even going. all in all it was fun. nothing i would be obsessed with and go every day, but i did find some type of fulfillment out of it. now today i have some keepsakes if you will (bruises) to show my bravery in playing the game. going into play i knew that getting hit wasn't going to be exactly what we call fun. so why did we do it? why did we go into play this knowing we would come out with some kind of pain?
i don't know the exact solution to the problem, but i think we find a kind of satisfaction in overcoming some type of physical pain. as for completing a marathon, i think it would definitely be worth it (but i haven't exactly ever run a marathon, so who am i to know). just the single sole fact of satisfaction in completing something as physical as a marathon should be worth some type of physical stretch, paint balling on the other hand i don't have a solution to why the human race does such things (but i am a part of it).
Q: why is it that sometimes we do things that bring us pain, and gain satisfaction from it?
A: i don't have a solution to why the human race does such things.