The human body may be equipped with a separate sensory system aside from the nerves that gives us the ability to touch and feel, according to a new study.

Most of us have millions of different types of nerve endings just beneath the skin that let us feel our surroundings. However, the once-hidden and recently discovered skin sense, found in two patients, is located throughout the blood vessels and sweat glands, and most of us don't even notice it's there.