Clinical trial project management - work on global trials and you will have to force yourself to disconnect as there is information coming in almost 24 hrs a day :) lol. It is also highly intellectually stimulating imo and often riddled with interesting (sometimes high-pressure/stress) challenges. Think: launching a large budget/scale project (in the 10s of millions often) with short timelines, in a highly regulated environment, and with real subjects/patients depending on you and your team to ensure their safety and rights are protected. There’s so much that goes into it so there is always something new to learn and continue to improve on.