P
I ride 20 street miles a day 5 or 6 days a week year round and I know
that I breathe unknown carcinogens not to mention particulate matter
and God knows what else. Have there been any long term scientific
studies with biking all other things being equal, sex, age etc. where
two groups one riding one not and cancer studies.
that I breathe unknown carcinogens not to mention particulate matter
and God knows what else. Have there been any long term scientific
studies with biking all other things being equal, sex, age etc. where
two groups one riding one not and cancer studies.