The subcutaneous tissue is the deepest layer of our skin. This layer is made up of blood vessels and body fat in order to help your body regulate temperature and protect your inner organs. It gives your body a smooth and contoured appearance, serves as an attachment site for your underlying muscles and fascia, store fat cells that act as energy reserves and produce hormones like leptin, contains deep pressure sensors, contains blood vessels that play a role in thermoregulation
The subcutaneous layer doesn’t contain fat and can be thinner than 1 millimeter (0.04 inches).
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