Biology
Why do we feel sleepy after eating a big meal?
Quick fact
The digestive system uses a significant amount of energy during digestion.
Why this is interesting
Have you ever noticed that after a heavy meal, you feel like taking a nap?
Read the full explanation
Understanding Why do we feel sleepy after eating a big meal?
After eating, blood flow increases to the stomach and intestines to aid in nutrient absorption.
A deeper explanation
When we eat, the body diverts blood from other parts like the brain to support digestion. This can temporarily lower alertness and lead to feelings of sleepiness.