For trading, you train your brain as all of the tools you need are inside your head. You discipline it and teach it how to think multiple things at a single time very efficiently.
Yes, I can feel It because most of the time while trading I fall into hesitation, at the time vast amounts of thoughts randomly revolve in my mind and a few questions also arise in my mind like am I doing anything wrong? The decision I've made, will it come with a positive outcome??? Ultimately, I can detect the result after closing the trade.