Check your body's response to

We still know that people can be burned, freezing, crushed by outside agents. However, what really happens to our bodies when faced with dangerous agents?

Find out when faced with dangerous agents, how our bodies have to fight.

1. Speed

G-forces (force G or gravity) refers to the 'weight' of force by accelerating the effect on the body. In order to understand more about this force, US Air Force officer John Stapp has "devoted" the body to science.

Stapp to self-bearing 35g (g = gravitational acceleration) equivalent to the pressure from acceleration up to 343m / s2. At this time, the bones in the body cracked, the substances in the teeth flew out, but according to Stapp, the pressure on the blood is really scary.

When accelerating horizontally, the body of a normal person still succumbs, because the flow of blood remains the same. However, the G force when accelerating upwards is different. In addition to normal gravity (4 to 5g), the human body does not have enough strength to pump blood, causing blood pressure to press down on the legs.

G force when "landing" is the same, blood rushes up too fast, causing the body to quickly lose consciousness. Fortunately, the pilots were equipped with specialized gear, with balloons large enough to hold the blood still.

2. Pressure

' Decompression sickness' occurs when the pressure on the human body drops suddenly. This is a common disease among divers.

Normally when on the shore, we will only be exposed to an air pressure of about 1 meter (760mmHg). But when going into the water, we have to 'carry' on us a volume of sea water. Every 10 meters down, the pressure increased by 1atm.

After a long period of dive, the emergence is so fast that the pressure on the body abruptly decreases, leading to a decrease in pressure. At this time, blood cannot resolve gases such as nitrogen and these gases build up in the blood to form air bubbles. In some severe cases, bubbles build up in blood vessels causing congestion, leading to dizziness, confusion, and even death.

There are two levels of 'hypotension' , the milder case of 'level 1 pressure drop' - DCS I only causes joint pain and nerve tissue. DCS II can cause death, with some symptoms such as paralysis, dizziness or seizures.

3. Cold

When the body temperature drops to 30 degrees C, the entire body function slows down. The body appears symptoms like fatigue, clumsiness and slowness.

The first part 'bundles' when the body temperature at 30 degrees C is the body temperature regulation system. The heart and lungs slow down until the whole body becomes severely hypoxic.

The kidneys also stop working quickly, causing wastes not to be removed, into the blood and other organs, causing heart failure or seizures. However, when the body temperature decreases, the metabolic needs will also decrease, helping people survive. The body will recover when properly warmed.

4. Hot

"Heatstroke" occurs when the body temperature exceeds 40 degrees Celsius. Generally, people get hot when exposed to heat, such as summer heat. There are also cases of heatstroke due to heavy work in high temperature environments, such as workers or athletes.

It should be noted that only 20% of heatwaves survive without treatment and many of them suffer from brain damage.

Humidity increases the risk of heatstroke, because sweat is hard to evaporate, causing the mechanism to cool itself down. When the body temperature is too high, reaching 42 degrees C for about 45 minutes, the cells begin to break down. The tissue swells up, the mucosa separates causing the body to become poisoned.

In some mild cases, only the body circulatory system slows down. However, severe cases can damage the nervous system, cause dizziness, confusion, or severe seizures, leading to death.

5. Hungry

Hunger can beat anyone but the process of acting on the body is quite scary. In the absence of food, the stomach shrinks, making it difficult for the body to eat normally when it is ' fed up with food'.

The heart muscle also shrinks, reducing the amount of blood pumped, causing hypotension. Being hungry for a long time, the body suffers from anemia. Even more dangerous women, can cause menstrual loss forever.

Long-term starvation will cause a lack of sugar, the body begins to burn fat. Is it really "stimulating" to overweight people? But when the amount of fat stored is too fast, the body releases compounds called ketones (ketones) that cause nausea, dizziness and bad breath.

The internal skeleton due to lack of substance may be permanently weak, even if it is fasting only for a short time. Besides, the lack of important substances such as Potassium or Phosphorus causes negative effects on the brain. The brain can permanently lose gray matter, causing the brain to stagnate - even after receiving food later.

In children and adolescents, fasting has the potential to cause chronic diseases later. Also interesting is that long-term hungry people often grow a thin layer of fluff to help the body regulate the temperature.

6. Elevation

Even people who do not have fear of height when looking down from the roof of a skyscraper feel dizzy and dizzy. This feeling is not only psychological. That is the feeling of balance.

When on the ground, we rely on static objects to orient the body. But when standing high above looking down, this mechanism does not work. The "static objects" are too far away, making the body unable to "reassure itself" even though the brain still knows that.

Also, when at a certain height, things start to become 'swaying' and our bodies automatically notice it, though the brain is not certain. The higher the height, the more wobbly this feeling is, which affects the body's sense of balance.

According to a study at the University of California, people who estimate poor distances may have high fear of heights. Applicants are required to estimate the height of a building. The results show that those who estimate too far from the actual height of the building give an extremely 'violent' response when standing on top of that building.

7. Radiation

Radioactive decay releases energy directly into the environment. Exposed radioactive energy destroys cells in the body or mutates, leading to serious cancer.

The body needs to be exposed to a large amount of radioactivity to get cancer. An average person is allowed to contact about 0.24 to 0.3 rem (radiometric unit) for one year. With every 10 rem exposure to the body, the risk of cancer increases by 0.5%.

When the radioactivity exceeds 200 rem, the body will become contaminated. Infection has an immediate effect on vomiting, red blood cells, and negative effects on bone marrow. Damaged bone marrow can lead to a more serious problem - that is, thrombocytopenia, which prevents blood from freezing.

8.

Those of us sometimes feel lonely, even when there are many people around. This is normal, but being lonely can often affect the body.

According to psychologists at the University of Chicago, people who feel lonely have reduced their immune system. The reason is that lonely people always feel the world is a place full of danger and lack of friendliness, making the immune system always put in a state to fight bacteria.

This results in their immune system producing antibodies ineffective, making them susceptible to viral diseases. In addition, lonely people are prone to high blood pressure, due to the risk of diseases such as high arteriosclerosis. They are also susceptible to stress due to insomnia, causing the body to suffer from heart disease, even stroke.