Human brain cells underwent a continuous process of dying, never reviving or multiplying. Each one that died was one fewer, until they were all gone.
This process was called programmed cell death, also known as apoptosis.
The number of brain cells in the human body reached approximately 14 billion at birth. Only after the age of twenty did the brain begin to age, with brain cells decreasing at a rate of 100,000 a day.
Elderly people suffering from dementia were often seen in old age, also because large numbers of their brain cells had died.
Incidentally, theories such as the claim that humans used only about 10% of their brains were actually misconceptions and fallacies. Modern scientific MRI scans showed that every region of the human brain had already been developed and efficiently utilized, reaching a utilization rate of 100%, with no idle brain cells.
Chen Jue had previously used [Inner Vision] to carefully observe his brain at work, seeing the functioning, strengthening, aging, and death of brain cells more clearly than an MRI could.
But this time, through practicing the [Bai Ze Guiding Technique] and [Five Senses and Six Perceptions Skill], along with taking in large quantities of mind energy, Chen Jue discovered that his brain was transforming in an uncontrollable, unknown direction.
This was the uncertainty along the path of cultivation and evolution. Even a True Sage of the Human World like him, firm of will and wholly devoted to the Way, felt doubt, confusion, and worry over this transformation whose benefits or harms were unknown.
Observing those brain cells that had swollen to the point of slight deformation more closely again, Chen Jue suddenly gave a soft exclamation. "No!"
"It doesn't seem to be abnormal mutation or cancerization... these mutated cells don't have cancer cells' traits of