Focusing on things outside of one's control is the primary driver of unnecessary stress and anxiety.

“if you focus and try to manage things that are never going to be within your control it only creates stress anxiety and frustration for you”

Stress and anxiety arise from the same fundamental threat response, but they are conceptualized differently based on the nature of the perceived threat.

“They're actually part of the same physical reaction. You know, you have this one threat response, and and you only have that one threat response.”