In fact, everything is much simpler than it seems. People have always sought thrills because it helps them feel alive. I recently read an article https://www.thexboxhub.com/adrenaline-rush-in-modern-sports/ , which said that adrenaline is such a primal instinct. In the past, when our ancestors faced danger, it was important for survival. But now we don't face real threats, and to feel this "rush" we look for it in sports. You're right when you say that adrenaline makes you feel like life is not just passing you by. People still, for example, participate in races or jump with a parachute, because it's like a return to these ancient instincts.