Ordinary people were different from paranormals. If they were to eat an evolutionary crystal, it would be like recklessly wasting God's gifts. The evolutionary crystal's potent energy could even cause death.
Chu Chongshan was clear about that, so he just used the evolutionary crystal to brew tea. Generally speaking, an evolutionary crystal would last him for two months until he 'drank' all of it. During those two months, the pure energy contained in the evolutionary crystal would subtly transform his body, making him stronger, and his senescent cells would be revitalized!
Scientific theories had long proven that humankind's longevity could reach the limit of 150 years. Many humans died before the age of 100 years old due to various reasons, such as illnesses and impurities which could cause the organs to fail prematurely.
Valvrave's corner; Okay, now I want some evolutionary crystals :P Somone is about to meet his maker ^_^