Multitasking drains your energy fast and forces you to take longer breaks to recover. The speaker warns that burning out on multiple tasks in the morning leaves you with nothing left for afternoon work.
Chapters
Whenever I hear that you need to be good at multitasking to be successful, I just find that to be a bad advice for me. Maybe for some people it's different, but I don't really operate in that way. If I'm trying to simultaneously focus on finishing 2, 3, or even more tasks at the same time, I can just feel my energy being drained from it. I then need a longer break to recharge. I'm also a big believer in preserving your energy and using it strategically to throughout the day. If you use all your energy by doing multitasking in the morning, there will be nothing left for the afternoon.