Well if you commuted by riding 100 miles per day on a motorbike for 40 years your total risk is roughly 77,000 micromorts (77 millimorts?), or double the risk of summiting Everest once!
I often think about this while riding my bicycle to work. The exercise and quiet time surely has a positive impact on my health span, but being among cars risking collision and breathing in exhaust is a negative. What’s the net result?