Why are we sleepy after lunch? Learn why and how to avoid it

It is quite common to get sleepy after lunch. The most critical period is between 2 p.m. and 5 p.m. The reasons can be several, from a sleepless night to sleep diseases. However, the most likely culprit is the circadian rhythm, as it is linked to blood pressure, appetite, body temperature and hormonal levels.

Several studies indicate that the alertness of the human being tends, as a general rule, to be lower at two times of the day: at dawn between 2 a.m. and 7 a.m., and in the afternoon, between 2 p.m. and 5 p.m.

After lunch, the body changes the blood circulation in order to accommodate greater flow of blood to the digestive system, which means that the brain receives less oxygen, thus triggering a kind of momentary tiredness. The pancreas has a peak of insulin after a meal, which can contribute to this state.

If you want to combat this excessive drowsiness after lunch, follow these tips:

• eat more vegetables than carbohydrates

• take an outdoor walk

• have a coffee

• take a quick nap of 25 to 30 minutes