Is there any harm in cycling everyday?

Q: I usually go to school on my bike. Is there any problem by doing so? I have to travel about 35 kms per day. Can there be any side effect or an adverse effect on my health?

A:If you have been biking for a while and you are comfortable with it, you need not worry. However you must take caution that your back is not bent over for most of the ride because this might result in lower back pain.