It depends upon the person and the exact situation, but it's a fundamentally different kind of tired. My students marvel at this.
They can tinker with mechanical things for a 12 hour crunch session before a robotics competition, and end up achy, hangry, and physically tired. But it might not be as exhausting as as an intense 1.5 hour math class or chasing a bug staring at screens for a couple of hours.
They can tinker with mechanical things for a 12 hour crunch session before a robotics competition, and end up achy, hangry, and physically tired. But it might not be as exhausting as as an intense 1.5 hour math class or chasing a bug staring at screens for a couple of hours.