Apocrine refers to a type of glandular secretion found in certain areas of the body, such as the armpits and groin. These glands produce a thicker, milky fluid that is rich in proteins and lipids. Apocrine glands become active during puberty and are often associated with body odor, as the secretions can be broken down by bacteria on the skin. Unlike eccrine glands, which produce a watery sweat primarily for temperature regulation, apocrine glands are linked to emotional responses and stress. The secretion from these glands is released into hair follicles and can be influenced by hormonal changes, making them unique in their function and location.