This happens because when you eat all the blood float right to your stomach in order to digest the food you have eaten, thus you have no will and mood for anything else, you just feel lazy and doing nothing. This is why it is healthy to have a rest after heavy meals so that your stomach can do its job properly. You just don’t worry about your sleepiness, it lasts only until you have digested the food you have eaten.
Most people fall asleep after eating and don’t know why. In reality, there is science linking food and sleep. Let’s get into the science behind feeling sleepy after a meal!Excess alkaline in the blood also referred to as “Alkaline Tide”
After a meal, stomach acids are released to assist in food digestion. There is around 40% rise in gastric secretion. During the gastric phase which takes about three to four hours, existence of food in your stomach causes a decrease in pH. In addition, protein in your stomach bonds to hydrogen ions lowering the pH of your stomach to pH 1-3. As digestion and absorption continues, the pH levels of the blood are lowered. A more alkaline blood will automatically lead to drowsiness. This clearly points out why you are more likely to feel sleep after a meal high in protein. On the other hand high carbohydrates lead to a change in your brain’s serotonin neurotransmitter levels making you drowsy.
Another thing, It will probably be due to one or more factors below.
Eating sugary foods or those made from flour, such as bakery products or pastas, causes blood sugar to rise higher than normal. This causes your pancreas to release large amounts of insulin, which drives one of the protein building blocks called tryptophan (see fig 1 ) from your bloodstream into your brain, where it is converted to serotonin that makes people fall asleep naturally at night.
Many meals contain the L-tryptophan. This essential (cannot be made in the body) amino acid needs to be taken on an empty stomach and without any other amino acids or protein in order to make you drowsy.
Some people think, however, that feeling drowsy is not necessarily due to this tryptophan. Some Say:
- Tryptophan does not deserve nearly the blame it gets for making us sleepy.
- "The body wants to focus its efforts on digestion,"
- "Drowsiness occurs after any big meal, regardless of the meal components."
- "Digestion of any large meal, whether it's a high-protein, a high-fat or a high-carbohydrate meal, causes the familiar after-meal drowsiness."
So, what does this have to do with feeling cold?
