biking is great for your heart, which has been my focus because there's heart issues on my dad's side - dead grandfather, dead uncle and probably-would-have-got-him-if-cancer-didn't dead dad. i've known for years that this was my biggest challenge, and my heart is in excellent shape because i addressed it.

i never gave a passing thought to my bone density; now that i have, i need to make sure i'm walking, too, and not just biking everywhere.

so, i'm too relieved to get pissed off.

but, it's a valuable lesson, regardless.