The biological nature of man reflects the need for what no one can do without. This is all so everyday that no one even delves into the essence of the matter. And it should be considered in more detail.
Terminology
To begin with, it is worth briefly defining the concept itself. Biological needs - a class of specific needs that are associated with the need for the full implementation of the functions that are vital. First of all, in order to maintain the constancy of the internal environment of the human body. This is homeostasis. That is, self-regulation, the preservation of which is directed by a person’s need for oxygen, water and food is directed. All this we get daily. And oxygen is constant. Without these "components", human life is not possible.
About basic needs
So, the biological nature of man reflects the need for oxygen. Everyone can come to this conclusion. But what does it justify?
Every cell in our body needs oxygen. This is an integral element of many metabolic reactions. About 200-250 ml of oxygen is delivered to the cells every minute. Its amount is 300 liters per day. When a person does hard work, his need increases tenfold. Oxygen is a part of carbohydrates, low molecular weight compounds, proteins, lipids. So, the oxygen absorbed in the process of breathing is an integral component of every person. Without air, we can live a maximum of 5 minutes.
Also, the biological nature of man reflects the need for food. Organic matter that comes in during the meal helps us stay healthy as they give us energy. And replenish the balance of trace elements - phosphorus, potassium, calcium, sodium, chlorine, magnesium, manganese, iron, iodine, etc.
And finally, the liquid. The biological nature of man reflects the need for water, which serves as a means of cleaning the body, a "transport" that delivers nutrients to the cells of the body, and also a natural solvent that helps them absorb.
Sleep
One cannot but mention this component of our life. If a person does not sleep for 2 days, then changes in his body will begin to occur, associated with the hormonal background and the violation of neural connections in the cerebral cortex. After 3-5 days, brain cells will begin to break down, and the load on the heart will increase. There is no exact answer to the question of how long a person can survive without sleep.
He is necessary. And not only because we gain strength and restore energy. During sleep, cell regeneration is actively taking place. Also, night rest allows our subconscious to organize the memories and emotions that were received during wakefulness. And even during sleep, "rest of neurons" occurs. Our body begins to work in an "economical" mode. And to awakening, we are almost completely replenished with energy.
Minor needs
So, all that was listed above, in the life and development of absolutely each of us takes the place number 1. The biological nature of man reflects the need for something else. But this is secondary.
For example, the continuation of the genus. The need for this demonstrates a person as a biological species. But in general, looking at how the population is growing inexorably, we can conclude that there are no problems with the realization of this need.
What is more important is a person’s need for personal territory and security. It gives rise to the need for medicine, medicine, hygiene, sanitation, a healthy lifestyle, and relaxation. Also from this need follows the need for clothes, necessary not only to look good, but also to maintain a constant body temperature.
Implementation
Well, the biological nature of man reflects the need for food and water, clothing, housing and much more. But all this can be satisfied only at the expense of material objects. That is, through money. But they just are not given. Hence, a person has a need for work. Which allows not only to gain money, but also to satisfy their social needs. They are manifested in the need to assert themselves, to show their usefulness, to feel necessary and valuable, to show leadership qualities, to receive praise. In addition, a person will receive money for which he can provide himself with housing, clothing, medical supplies, food and water.
What else is important to know?
In short, it is worth talking about the classification. All needs are divided into two types - "for themselves" and "for others." The biological nature of man reflects the need for food - this is from the first category. Food is necessary for a person to survive.
The need “for others” is already from the animal world. In fact, people relate to it, since man is a biological being. Needs "for others" have prerequisites. In animals, this is a parental instinct, group care for offspring, the ability to emotional resonance. People show all of the above, worrying about the well-being of family members, relatives and friends.
But also, in addition to everything previously listed, the biological nature of man reflects the need for knowledge, self-expression, self-identification, self-esteem, public recognition, evaluation of achievements. This also includes the need for communication, in finding social ties, care, joint activities, in comfort. In this category, designated social, there are also needs “for others”. They appear in altruism - in a person’s readiness to sacrifice himself in the name of someone else, to serve the rest selflessly, to protect the weak.
And by the way, there are still aesthetic needs that distinguish us from animals. They are manifested in the enjoyment of the beautiful. And due to the fact that many people experience them, our world has so many manifestations of complex forms of art - music, cinema, theater, literature, music, architecture and painting. And it all started small - as soon as a person began to engage in labor. In the process of making something, people decorated objects, giving them aesthetically pleasing shapes.
We can talk about human needs for a long time. Only the main ones were listed above. In fact, there are ten times more of them, and all have long been necessary.