There is a joke that says, "Look at your hair." What does this mean?

There is also hair loss, which may be ironic, meaning that hair is scarce.

To tell the truth, the fact is that the hair is dense.

Maybe it's dirty hair

Hair refers to the hair that grows on the head. Hair is not an organ, so it does not contain nerves and blood vessels, but cells. Hair is mainly used to protect the head besides enhancing the aesthetic feeling. Soft and fluffy hair is elastic, which can resist light collision and help head sweat evaporate. The average person's hair is about 654.38+ ten thousand. Of all the hairs, the length of hair is the longest, especially for women with long hair. Some can grow to 90 ~ 100 cm, or even 150cm, but generally it will not exceed 200cm.