Zhang Cang was a Confucian, a scientist and a yin-yang scholar during the Warring States Period and the Qin and Han Dynasties. He was once a prisoner for following Liu Bang. When he was executed, the passing tomb found him fair-skinned and handsome, so he begged Liu Bang to save him. Later he became a follower of Liu Bang.

Because Zhang Cang's ancestors were very small in height, and some were even lower than Wu Dalang's, in order to change genes, Zhang Cang paid great attention to health preservation, and was also very particular about diet.

Zhang Cang retired from politics after working as prime minister for more than ten years because he was reported to be corrupt. After retirement, I lost my teeth because I was old, so I ate human milk. Unofficial history said that Zhang Cang's life in his later years can be described as happy.

In a small mansion, there are more than 100 wives alone. It is said that as long as his wives and concubines have no pregnant girls, it is convenient for him to eat human milk and satisfy his beautiful heart.

It's just that human milk is nutritious, but it's not necessarily the secret of longevity. In history, besides Zhang Cang, there is another one who also relied on human milk as the secret of longevity, that is, Empress Dowager Cixi in the late Qing Dynasty. Human milk is also the best beauty and longevity secret for Cixi, but such a secret seems to be rare for another person.

After Yuan Shikai learned that both Zhang Cang and Cixi ate the secret of longevity, he might have eaten human milk himself. The effect is not so good, and it has not achieved the effect of prolonging life.

So eating human milk can increase the missing elements in the body, but longevity is not absolute. Human instinct and genes account for a large part of the reasons, and of course, it also has a lot to do with the usual eating and living habits.