How did the accumulation of oxygen in the Earth’s atmosphere affect the degree of intensity of the vital processes of the inhabitants of our planet?

Oxygen has a profound effect on the body as a whole, increasing the overall energy of the life of the inhabitants of our planet. New organisms arose and evolved.

Remember: The process of learning a person lasts a lifetime. The value of the same knowledge for different people may be different, it is determined by their individual characteristics and needs. Therefore, knowledge is always needed at any age and position.