Evolution always follows the path of maximum adaptation to the environment and does not really care about the creatures' response to defence mechanisms. Many of them are quite unpleasant and even painful, but that doesn't make them useless or harmful.
On the contrary, some of the body states that we perceive negatively are no less useful than pleasant sensations, and without them life would be dangerous, dull and boring.
Some people try to push the idea that there is no fear, that it is all an illusion created by our minds that is useless.
Yes, fear can turn into a phobia and then it becomes a dangerous phenomenon that gradually destroys psychological health. But fear itself is good for humans and any other creature. This innate barrier helps you avoid potentially dangerous actions by analyzing their intended consequences. If it weren't for fear, you would have died at a young age, tried to jump from one rooftop to another, or thought you could easily cross a stormy river.
When we feel fear, stress hormones are released into our bloodstream to energize us, allowing us to work at 100% efficiency, even when we are very tired. By experiencing this feeling and living it, the body rewards itself by releasing hormones of joy, which lifts the mood and increases the desire for life.
Most people know how intense the pain can be. At such moments, sparks fly out of your eyes, you pray to all the gods if this feeling is gone, and you are outraged why nature has gifted people with such an unpleasant sensation.
Many would like to never feel pain. And that is wrong. Pain is the body's protective response that has saved your life repeatedly. It helps understand: a little more pressure—and you break your arm or bite your tongue until it bleeds.
There is an extremely rare hereditary nervous system disorder—congenital insensitivity to pain with anhidrosis. People suffering from this disease do not feel pain, heat, cold, etc. In this condition, a person lives every day like the last, because they do not notice how they begin to chew their tongue or a dangerous damage to internal organs is missed.
Pain as the direct opposite of pleasure creates a contrast that makes you enjoy even more pleasurable sensations and realize their full value.
Many people consider sadness to be an overly negative emotion that needs to be suppressed by any means necessary. However, if there were no sadness, you would not feel the contrast with good mood and would not strive for it.
Sadness is not just an unpleasant state, but a useful mechanism that helps people move forward. It is most often manifested when trying to assess lost profits and helps to choose a different path to avoid repeating the condition.
Since childhood, we hear the phrase “boys don't cry” and try to control ourselves in every situation without paying attention to the effect it has on our psyche. And that's the wrong approach. It seems to us that crying is a negative state that brings nothing good, only discomfort and shame. But crying is useful because it is a kind of psychological release, an outburst of emotion that helps us “clear” thoughts overwhelmed by negativity.
Can you think of a time when you were having such a hard time that you cried—how did it make you feel? We're sure it was a relief. Doctors say it's caused by the release of toxins along with the tears. Plus, when you cry, your breathing deepens. The oxygen supply lowers levels of cortisol, the stress hormone, which also improves psychological well-being.
Someone likes to feel fear or pain, sadness or crying, but there is hardly a person who is pleased with nausea and vomiting.
However, you have to thank evolution for this condition, because thanks to it you did not die of alcohol intoxication after excessive drinking or while eating spoiled sausage for dinner.
Vomiting helps to get rid of dangerous substances that have entered the body without waiting for their absorption into the blood. Along with it, harmful bacteria and viruses come out, making the condition easier.
Excessive sweating or scientifically—pathological hyperhidrosis can be observed in disorders of the endocrine and nervous system, diseases of the heart, blood vessels and kidneys, infectious and genetic diseases. This condition carries only one negative.
But ordinary sweating, which we perceive as an unpleasant condition, is a real gift of nature. Through sweat, our body regulates temperature by cooling the skin by evaporating water from its surface. If it weren't for sweating, you'd be in the intensive care unit for overheating every time the air temperature exceeded 10 to 15 degrees.
Everyone has faced such a situation when they could not decide on a choice between two or more options. In such cases, we look with envy at people who are able to make decisions immediately without experiencing doubt. In reality, however, indecision or doubt is a useful mechanism that helps us not to take hasty actions that theoretically lead to unpleasant consequences.
Doubt is taking the time to analyze the situation and the consequences of your decision, which will help you make the best choice. Many philosophers describe doubt as a necessary action on the path to knowledge and its absence—as stupidity or ignorance.