The sole of the feet have a lot of blood vessels, so some scientists call the sole of the feet the “second heart”. There are countless nerve endings on the soles of the feet, and are closely linked to the brain. The foot's health is not only related to physical health, but it us also closely related to life expectancy.

The sole of the feet have a lot of blood vessels, so some scientists call the sole of the feet the “second heart”. There are countless nerve endings on the soles of the feet, and are closely linked to the brain. The foot's health is not only related to physical health, but it us also closely related to life expectancy.