Chapter 1248: Calamitous Pestilence!

Thinking for a moment, Li Yao frowned and asked, "What's the problem of a world without diseases?"

"What's the problem?" Su Changfa scoffed. "The biggest problem is that the Cultivators broke the rules of nature and shattered the balance between human beings and nature!

"Human beings are the spirits of all creatures, the perfect existences that were born after billions of years of evolution of all carbon-based life forms! Even counting from the time when human beings were first born, we have also developed an effective immune system in the competition with nature, germs, viruses, and diseases!

"Without any medicine or medicative approaches, the immune system of the human body alone is enough to defeat most of the bacteria and viruses and also build up the body during the process. The growth is sometimes even deeply etched into our genes and passed on to future generations!

"This is what we know as evolution!"