Ever since I started powerlifting again, my mood is far less sensitive and more stable?

Ever since Covid hit, I’ve been gymless for many months. Just got a new membership, and hit the deadlift, squat, heavy dumbell press. After quarantine my strength is still surprisingly good! Max 455 deadlift before COVID, and I just did 415 (pretty easy), squatted 3 plates and a 10 on each side (felt easy), and 100 pound dumbell with good effort.

Since this week powerlifting again, I’m less agitated easily. My mood is far more balanced and zen-stoic calm.

I read a theory from Nassim Taleb about testosterone:

The higher your testosterone, ironically your mood is *less* variable, and cortisol (stress) affects you less.

Then the theory:

If you desire to have a more stoic and zen calm in life, increasing your testosterone (via natural methods like powerlifting and consuming more fatty red meat like beef) is massively advantageous!