I perceive that I am much less likely to turn my head (to check the traffic behind me) when I'm wearing a helmet. It's perceptibly less comfortable to do that.

I perceive that I am much less likely to turn my head (to check the traffic behind me) when I'm wearing a helmet. It's perceptibly less comfortable to do that. I will turn my head if I absolutely need to, but I don't make it a habit. Without a helmet, on the other hand, turning my head to check the road behind me is absolutely habitual. On this basis and on other points, I believe the helmet causes me far more danger than the helmet protects me from. I am speaking personally: I don't know if this applies to other people and I would personally not dare to use headphones or check texts while cycling. I obviously will never know for sure if I'm right about this, but generally not wearing a helmet is the decision I believe is correct for me.