Learn to tell the differcnce between the false world and reality. When you see your self becoming to invested in a fictional charcter take a step back and remind yourself this person is fake . Good luck!
I think the answer is man
I am not sure because there may be more context, but here is what I am guessing the answer is.
As Bryson pedaled uphill both his heartbeat and breathing rate increased. His breathing rate increases to provide the body (more specifically, exercising muscles) with oxygen at a higher rate and his heart rate increases to deliver the oxygen (and glucose) to the respiring muscles more efficiently.
A Convex Lens is the type of lens used in magnifying glasses.
