Have you ever experienced the urge to doze off after heavy lunch. I bet all of us did our best to get a power nap especially after lunch. According to this article Dozing off after lunch?, excessive sleepiness after the afternoon meal could be a sign of a health problem.
If you are interested to know the health related problem and how to overcome the excessive sleepiness after taking the afternoon meal, read the article.
The article suggests that the urge to feel asleep is related to the amount and types of carbohydrates that we consumed.