Feeling sleepy or sluggish after eating is a fairly common phenomenon, especially after meals with a lot of rice, noodles, bread or starchy foods. Many people think that the simple reason is overeating, but in fact, many different physiological mechanisms in the body contribute to creating this feeling.
According to Dr. Aravinda SN, the Chief Consultant of Internal Medicine at Aster RV Hospital (India), post-meal drowsiness is a normal physiological response, related to the digestion process, blood sugar regulation and the activity of neurotransmitters in the brain.
Increased blood sugar after meals
When consuming carbohydrate-rich foods such as rice, bread, pasta or sweets, blood sugar levels will increase. To regulate blood sugar, the body activates many biological reactions, including an increase in substances related to relaxation and sleep. This is considered one of the common causes that makes many people feel sleepy or less alert after meals.
Body focuses on digestive activity
After a large meal, the digestive system needs to work harder to process and absorb nutrients. This process increases energy demand and leads to many physiological changes in the body. According to Dr. Aravinda, these changes can cause some people to feel less alert, tired or sleepy for a short time after eating.
The larger the diet, the easier it is to get tired
Meal size also plays an important role. Overeating, especially containing a lot of refined carbohydrates but little fiber and protein, often causes blood sugar to rise rapidly and then drop rapidly.
This fluctuation can cause the body to feel tired, lack energy, or reduce concentration. This is why many people feel heavy and only want to rest after a too-full meal.
Some other factors also affect
Post-eating drowsiness levels are not the same in everyone. Sleep quality, stress levels, blood sugar control, insulin sensitivity, and overall health can all affect the body's reactions after meals.
To limit sluggishness, Dr. Aravinda recommends building a balanced diet, combining carbohydrates with protein, healthy fats and fiber. This eating method helps slow down digestion, limit blood sugar fluctuations and maintain a more stable energy level during the day.
