Why do deadlines motivate some people but overwhelm others?

I’ve always been fascinated by how differently people react to deadlines. For some, a deadline is just the push they need to get things done, but for others, it feels like a wall they can’t climb. I’m curious do you think it’s more about how our brains are wired, or is it tied to emotions like anxiety or fear of failure? What’s been your experience with deadlines, and have you found any tricks that help you stay productive without feeling paralyzed?