One of the worries: physical weakness, declining quality, and increasingly poor adaptability.
One reason is that modern humans have greatly improved their living conditions through science and technology, while having fewer and fewer opportunities to exercise, making them prone to falling into the trap of obesity, arteriosclerosis, and cardiovascular and cerebrovascular diseases. Secondly, due to the significant improvement in human living conditions and medical conditions, the pressure of natural selection has been greatly reduced. It is no longer possible to eliminate harmful genes through natural selection and survival of the fittest, as wild animals do. Those who carry harmful mutant genes and are physically weak can also survive and reproduce, increasing the accumulation of harmful genes in the entire human race and weakening their physique.
Concern 2: Excessive emphasis on hygiene and comfort, and excessive self-protection in life reduce the chance of the body being exposed to pathogens and reduce its resistance.
As we all know, various pathogens in the external environment are the stimulus sources for the human immune system to produce corresponding antibodies. It is precisely because of the need to deal with the attacks of various pathogenic microorganisms in the living environment that the two major immune systems in the body (humoral and cellular immunity) have evolved to such a delicate and complex level today. If we live in a "superior environment" that is too clean, spotless, and almost free of bacteria and viruses, it can indeed reduce the likelihood of illness. However, from another perspective, the immune and disease resistance system of the body may experience a situation of "use in, waste out" due to a lack of considerable stimulation. Once entering another environment with slightly adverse conditions and a large number of pathogenic microorganisms, it will be prone to disease and become vulnerable.
Concern 3: Environmental pollution and ecological imbalance have threatened the survival and reproduction of human beings.
In many regions, due to excessive human mining and deforestation, there are widespread phenomena of soil erosion, river siltation, frequent floods and droughts, and land desertification worldwide; Due to the disorderly discharge of industrial sewage and various toxic wastes, the large-scale spraying of various pesticides, fertilizers, and herbicides, many insects have been killed, many animals are tending to become extinct, the already fragile ecological balance of nature has been destroyed, biodiversity is constantly shrinking, and the biological gene pool has been severely damaged; Through the food chain, various toxins that eventually enter the human body are accumulated continuously, and they also mercilessly destroy the human guardian spirit enzyme, hinder the oxidation process by which the body obtains energy, hinder the normal function of various parts of organs, and lead to the fatal deterioration of the physiological process... The incidence rate of cancer is stimulated, the number of human sperm is sharply reduced, the proportion of malformations is increased, and its vitality is significantly weakened.
Concern 4: Convenient transportation and frequent communication have significantly increased the chance of disease spread, and new pathogens are constantly "emerging".
On the one hand, due to the excessive greed of humans in demanding from nature, uncontrolled deforestation of primitive forests, and consumption of various wild animals, some diseases that originally existed only in animals have been transmitted to humans and rapidly spread. AIDS virus originally only existed in African chimpanzees and did not cause disease, but when humans ate orangutan meat, the virus took root in their bodies and triggered AIDS.
On the other hand, environmental damage and the abuse of antibiotics have increased the pressure on pathogenic microorganisms to survive. They have to adapt to this change through a facelift of genetic mutations to survive. At the same time, they are more virulent, pathogenic, and difficult to deal with! "Pathogens have more opportunities to spread from one place to another, and their speed is faster. Due to the lack of specific immunity in populations there, they also spread extremely quickly and easily.". In addition, in the past 20 years, more than 30 new diseases have emerged, such as Legionnaires' disease, various hepatitis types, Grade IV virus, and Escherichia coli O-157. Many of these new members of humanity have not yet received effective treatment, which cannot be said to be another huge threat facing humanity!
(Intern Editor: Liu Feifei)