Ning Le's hair examination report wasn't coming out that quickly, but now the attending doctor asked about Ning Le's situation. Based on his current lifestyle, it looked like he had kidney deficiency.
The Inner Canon of Huangdi considers "hair as the excess of blood", with the kidneys responsible for storing essence, which is produced from blood, resulting in hair's appearance.
Therefore, under normal circumstances, during a person's youth, essence and energy are abundant, and blood and qi thrive, thus hair is long, lush, and shiny. As one ages, kidney qi weakens, essence and blood are insufficient, causing hair to whiten and easily fall out, which is a normal physiological pattern.
Modern people's busy work schedules, fast-paced lifestyles, and excessive stress, along with indulgence or poor diet habits, can lead to liver-kidney deficiency, showing premature aging with hair turning yellow, white or falling out early, all related to insufficient kidney essence and blood.
