As a breathing organ, skin takes in oxygen and expels carbon dioxide. It also functions as a kidney. The skin alone eliminates about 2 pints of water and salt each day.
At age 35 we have half the number of enzymes than at puberty. Vital functions slow down, skin cells become weaker. Many skin care ingredients are heat extracted, a process that kills enzymes and nutrients. (This is why proper skin care and natural moisturization is so important especially as you get older).
Of all the senses, skin remains most alert while we sleep and is the first to recover on awakening.
Skin is the earliest sensory organ to develop, being responsive to tactile stimulation when the embryo is six weeks old.
We can live without sight, hearing, and the sense of taste or smell. We cannot survive without the sensory capabilities of skin because this function provides vital information about our environment.
Skin is the largest sensory organ of the body.
The dermis is home to the oil glands, too. These are also called sebaceous (say: sih-bay-shus) glands, and they are always producing sebum (say: see-bum). Sebum is your skin's own natural oil. It rises to the surface of your epidermis to keep your skin lubricated and protected. It also makes your skin waterproof - as long as sebum's on the scene, your skin won't absorb water and get soggy.
You also have sweat glands on your epidermis. Even though you can't feel it, you actually sweat a tiny bit all the time. The sweat comes up through pores (say: pors), tiny holes in the skin that allow it to escape. When the sebum meets the sweat, they form a protective film that's a bit sticky.
The American Academy of Dermatology reports that one out of four people seeking medical advice about new skin problems is bedridden.
More than three million workdays are lost each year because of skin diseases. Chronic skin disease accounts for up to 50 percent of workers compensation claims in some states.
The skin is the body's largest and most visible organ. It reflects a person's general health and performs many important bodily functions. An average-sized person has 20 square feet of skin that serves as the body's front-line defense against injury and bacteria.
Waxes and oils act as your body's natural water-proofer and a protector against germs.
The sebaceous glands are
glands found in the skin of mammals. They secrete an oily substance called sebum (Latin, meaning fat or tallow) that is made of fat (lipids) and the debris of dead fat-producing cells.Sebum is your
skin's natural oil, and it keeps your skin soft and makes it a bit waterproof.Secretion of oil to prevent the outer surface becoming too dry.
Sebaceous glands are appendages of hair follicles and are embedded in the dermis and hypodermis throughout the body except on the hands and soles. They are prominent in the face, neck and upper body.
The secretion is sebum, a wax-like mixture of triglycerides and cholesterol. It likely functions as a protective agent and to maintain skin texture and hair flexibility.