Brown adipose tissue is present in small mammals (e.g., mice) and in newborn humans. Most of it disappears in adult humans. The cells in both types of fat are called adipocytes although they differ in origin, structure, and function in the two types of tissue.
On the left hand, index finger. It's not the index finger you wear it on. Left hand, ring finger. The finger that you would wear a wedding ring on.
A purity ring is typically worn on the ring finger of the left hand  and removed when a person gets married. The ring is a symbol of a  person's commitment to sexual abstineâ¦nce until marriage.