It is 2:45 p.m. You have an important email to answer, a presentation to finish, and a meeting coming up. Yet suddenly, your brain seems to have gone offline. You are struggling to concentrate, reaching for biscuits or coffee or a sugary drink and wondering why you are so tired.

Welcome to the 3 p.m. crash.

But here is the perspective shift: your lunch may be part of the problem, but it may not be the whole story.

Feeling somewhat sleepy in the early afternoon is not unusual. However, before blaming your lunch, ask yourself: How did I arrive at lunchtime?

How much sleep did you get? Were you energetic all morning, or were you already dragging yourself through the day? Are you genuinely hungry, or have you been fighting sleep since noon?