Why Do You Feel Tired After Lunch?
Why evolution prefers it this way
- 80–90% of people can adjust their routine if work/school requires it
- 5–10% are extreme morning people
- 5–10% are extreme evening people
This article is about the after-lunch tiredness. Before going there however, we have to talk about the sleeping cycle. According to this 2005 study from the University of Pittsburgh, what really influences your post-lunch fatigue are more elements like:
- sleeping patterns,
- melatonin level
- carbohydrate amounts.
For a long time, many assumed that eating a heavy lunch was the only cause of sleepiness. However, it has much more to do with your circadian rhythm rather than the food you ate. What do I mean by that?
Sleeping patterns
In the hottest days in the savanna, where the Homo sapiens developed, an afternoon nap was a good way of getting through the day. Predators were resting in the shadows and the early humans took advantage of this to recharge their energy by sleeping and eating.