I am an 18 year old college student who loves coffee. I worked as a barista one summer and have been hooked on coffee, rather espresso. I also ride a good amount. It commute to school about 18 miles round trip a day and try to work in some additional ridding when I have time. I do a regular amount of MTB on Saturdays.
As for my drinking, I drink about 1-2 espresso's a day. I try to combat the dehydration effects with lots of water.
Another thing is, how bad is it to have coffee the day of a race? I for some reason run better but I am sure it does not help with good hydration and all that.
I also give plasma for money and to help out my local hospital. I go twice a week and it gives me a chance to check my weight, pulse, blood pressure and all those good things. I have almost always a pulse around 95! How bad is that? MY resting rate is good around 45ish.
Any ideas how much damage I am doing to my body? Any suggestions, other than give something up?