It's a gift until it's a curse, and ADHD crashout/burnout is an absolute monster to overcome when it arrives.
And for any person who's tasked with any sort of responsibility, it WILL arrive at some point. It's not a question of if, only a question of how well you can prepare for its arrival.
At its core it has striking similarities with a freeze response, which is overcome by increasing heart rate (e.g. stimulants, exercise, temperature shock). Big overlap with CPTSD symptoms as well.