7 The most common causes of stomach nausea

What happens to the body when you feel nauseous?

Nausea is the sensation of wanting to vomit that generally occurs as a spontaneous reaction by the body to an unusual stimulus. Simply put, nausea is a self-defense instinct that every human being has in order to avoid danger.

The cause of the sensation of nausea, aka eneg appears because there is something that triggers the nervous system in your brain to overreact. The part of the nerves that regulates the appearance of the sensation of nausea is chemoreceptor trigger zone (CTZ).

This zone will react by producing signals to be sent to the digestive system in the stomach to cause nausea, as soon as the brain detects that something suspicious has entered the body. Nausea can then trigger vomiting in order to expel the foreign substance through the mouth because it is considered dangerous.

So, what kinds of things or stimuli can cause nausea? On average, the cause is foreign substances that enter the body, whether it is consumed by mouth or inhaled. For example, certain drugs, food or drinks that are contaminated with germs, to pungent odors such as the smell of rotting garbage or stale food.

The cause of nausea can also occur when the body makes unwanted repetitive movements. For example, the body swaying during a boat ride or a car ride, or when rotating in a game.

Various conditions that often cause nausea

Nausea is generally a symptom of illness, although it can also be a reaction to certain health conditions. So, what can be the cause of nausea?

1. Gastric acid rises

Digestive disorders or diseases that make stomach acid rise into the esophagus can be a cause of nausea. Examples are dyspepsia (ulcer) or GERD.

These two diseases are characterized by weakening of the sphincter muscle that separates the esophagus from the stomach, making it unable to close tightly. As a result, food that has been digested and mixed with stomach acid can leak back up the throat.

The sour and hot taste in the mouth along with belching and coughing can cause people with gastritis or GERD to feel nauseous.

2. Pregnant

If you are pregnant, this period of pregnancy could be the cause for you to experience nausea. Nausea during pregnancy is popularly known as morning sickness .

Actually, there is no definite relationship between nausea and pregnancy. However, some experts believe that nausea during pregnancy occurs due to increased production of the hormone h uman chorionic gonadotropin (HCG). HCG is a hormone produced by the body after a fertilized egg attaches to the lining of the uterus. The increased estrogen hormone is also a factor in nausea during pregnancy.

In addition, being pregnant often makes mothers experience stress and fatigue. In most cases, the body can cause physical reactions such as nausea and vomiting to illustrate that it is time for you to take a short break.

3. Infections of digestion

Digestive diseases caused by infections, such as vomiting and food poisoning, commonly cause symptoms of nausea.

Nausea occurs when germs that cause infection (bacteria, fungi, viruses, or parasites) attack the lining of the stomach and intestinal lining, producing toxins. This infection then triggers the immune system to order the digestive organs to produce more fluid.

In the end, the brain will trigger the nerves in the stomach to cause nausea and the urge to vomit in an effort to remove substances that are considered toxic to the body.

4. Motion sickness

The most common and common cause of nausea is when you travel in a vehicle such as by car, plane or train. This is caused by mixed signals sent to the brain by the eyes and inner ear.

When you are in a moving vehicle, you generally remain in a seated and still position. However, your eyes and ears that look out the window during the trip will see that everything is moving backwards and causing an unusual reaction.

This "oddity" causes a part of the brain called the thalamus to send signals throughout the body that something is wrong. It's like telling you that, "Hey, why is your body still but the others around you keep moving?"

By the brain, movements of the eyes and ears that do not fit the body are considered a danger. The thalamus will also cause a nauseous reaction as a way to stop this "danger".

This condition is named motion sickness aka motion sickness.

5. Drunk alcohol

If it weren't for travel, drinking intoxication could also be a cause for nausea.

The first few sips in the early minutes of drinking alcohol probably won't get you right away eneg . However, alcohol is a substance that is considered a poison by the body. So the more alcohol you drink, especially in a short time, the brain will produce an objection reaction.

The brain will immediately send a signal to the digestive tract to expel the contents of the stomach to declare that the alcohol dose is excessive and harmful to the body.

This is what causes you to be nauseous and end up vomiting when you are drunk.

6. Anxious or panicking

Anxiety and panic or nervousness are the body's natural reactions to stress that can trigger a variety of psychological and physical symptoms, including nausea. So when you are anxious or panicked, for example while waiting for a job interview, don't be surprised if you suddenly feel nauseous.

Stress causes increased production of the hormone serotonin in the body. Apart from making the heart rate faster and breathing shorter, the hormone serotonin is known to increase the production of acid in the stomach.

In response to all these abnormal bodily functions, the brain will trigger a reaction of nausea and maybe even want to vomit.

7. Side effects of certain drugs

Quoted from Harvard Education, the side effects of some drugs can cause you to feel nauseous.

For example, painkillers class NSAIDs. This drug has an irritating effect on the lining of the stomach, so that people who are sensitive to this drug can experience nausea and vomiting.

In some other cases, the cause of nausea after taking medication can be due to the digestive system being unable to absorb drugs. As a result, drugs that have been taken will remain in the intestines longer, and eventually trigger irritation until the body releases a nauseous response.

The interaction between two different drugs can also cause nausea if you take them at the same time. So to avoid these side effects, pay attention to the instructions on how to use the drugs listed on the label, or consult your doctor or pharmacist further.