The skin is the largest organ of the human body. It protects us from the environment, regulates our temperature, and allows us to feel sensations. The average person has about 2 square meters of skin and weighs approximately 6 pounds.
The skin is composed of three main layers: the epidermis, dermis, and subcutaneous tissue. The epidermis is the outermost layer of the skin. It is composed of cells called keratinocytes, which produce the protein keratin.
The dermis is the middle layer of the skin. It contains blood vessels, nerve endings, sweat glands, and hair follicles. The subcutaneous tissue is the innermost layer of the skin. It is composed of fat and connective tissue.
Skin plays an important role in protecting the body from infection and injury. The epidermis provides a barrier to bacteria, viruses, and other potentially harmful substances.
The dermis contains blood vessels that help to heal wounds. The subcutaneous tissue helps to insulate the body and protect it from heat and cold.
Skin also plays an important role in regulating body temperature. The sweat glands in the skin help to cool the body by releasing sweat. The blood vessels in the skin can also constrict or dilate to regulate body temperature.
Skin is also responsible for our sense of touch. The nerve endings in the skin allow us to feel sensations such as pressure, pain, and heat.
The skin is a complex and vital organ that plays an important role in protecting and regulating the human body.
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Experts discussing SkinAll Skin Experts
Dave AspreyThe "godfather of biohacking", creator of Bulletproof Coffee, Bulletproof 360, author, and host of The Human Upgrade podcast.
Dr. Lana Asprey, M.D.Karolinska-trained physician who runs an international natural fertility and, healthy pregnancy consulting practice.
Dr. Josh AxeDoctor of natural medicine, clinical nutritionist, and passionate advocate for using food as medicine.
Nadine ArtemisAuthor, and Founder of Living Libations is a luxurious line of organic botanical beauty care and holistic dental products.
Dr. William Pawluk, MD, MScA family physician who is an expert in Pulsed Electromagnetic Field Therapy, acupuncture, nutritional/herbal medicine, homeopathy, hypnosis, and bodywork.
Katie Wells, CTNC, MCHCCEO and Co-Founder at Wellness Mama and Wellnesse, author, and podcaster.
Ann Louise Gittleman, Ph.D., CNSThe First Lady of Nutrition, nutritionist, best-selling author, nutritional visionary, and health pioneer.
Dr. Michael B. Fossel, MD, Ph.DPresident of Telocyte, author of Cells, Aging, and Human Disease, and The Telomerase Revolution.
P. D. ManganPrivate health and fitness optimization coaching for high-performing men and women.
Ryker BlackRyker Black is a distinguished author, researcher, and consultant with expertise in the arena of human life extension.
Dr. Sandra Kaufmann, MDChief of Pediatric Anesthesia at Joe Dimaggio Children's Hospital, author, and CEO/Founder/Owner at Kaufmann Anti-Aging Institute.
Dr. Stanley W. Jacob, BSc, MSc, MD, FRCS(C)Board Certified by the American Board of Facial Plastic and Reconstructive Surgery (ABFPRS), and founder of The Jacobs Center for Cosmetic Surgery.