Before the coffee or the laptop, drink a full glass of water (bonus points for a squeeze of lemon). Your body wakes up dehydrated, and clearing that brain fog immediately makes the "engine" run smoother before you even start your tasks.
The first two hours of your Monday are your most valuable. Pick the one most challenging task on your list—the one that usually causes the most stress—and tackle it first. This creates a "win" early on, providing the mental fuel to power through the rest of your afternoon.
Between meetings or deep work sessions, stand up and stretch for just one minute. It resets your posture and sends a quick burst of oxygen to your brain. It’s a small investment that prevents that midday slump.