A wrinkle, also known as a rhytid, is a fold, ridge or crease in an otherwise smooth surface, such as on skin or fabric. Skin wrinkles typically appear as a result of ageing processes such as glycation,[1] habitual sleeping positions,[2] loss of body mass, sun damage,[3] or temporarily, as the result of prolonged immersion in water. Age wrinkling in the skin is promoted by habitual facial expressions, aging, sun damage, smoking, poor hydration, and various other factors.[4] In humans, it can also be prevented to some degree by avoiding excessive solar exposure and through diet (in particular through consumption of carotenoids, tocopherols and flavonoids, vitamins (A, C, D and E), essential omega-3-fatty acids, certain proteins and lactobacilli).[5]
- ^ Danby, FW (Jul–Aug 2010). "Nutrition and aging skin: sugar and glycation". Clin Dermatol. 4. 28 (4): 409–411. doi:10.1016/j.clindermatol.2010.03.018. PMID 20620757.
- ^ American Academy of Dermatology. "Causes of Aging". AgingSkinNet. American Academy of Dermatology. Retrieved 5 March 2013.
- ^ Cosmetic Procedures for Wrinkles
- ^ Anderson, Laurence. 2006. Looking Good, the Australian guide to skin care, cosmetic medicine and cosmetic surgery. AMPCo. Sydney. ISBN 0-85557-044-X.
- ^ Schagen, S. K.; Zampeli, V. A.; Makrantonaki, E.; Zouboulis, C. C. (2012). "Discovering the link between nutrition and skin aging". Dermato-Endocrinology. 4 (3): 298–307. doi:10.4161/derm.22876. PMC 3583891. PMID 23467449.