To keep your battery charged, pretend you’re a toddler or, more accurately, the parent of a toddler. Look out for crankiness and frustration and be prepared with a nutritious remedy. When you leave home in the morning, pack a little trail mix or an apple. If you find yourself hungry and snackless, seek out real food (e.g., bananas or nuts) instead of junk food (candy or chips). You wouldn’t give your three-year-old a pack of Twizzlers to tide him over until lunch, and you should treat yourself with the same care. Grown-ups are people, too.

