Caroline Saucier, Universit de Sherbrooke, Canada
During deep sleep: Growth hormone secretion peaks, driving tissue repair and muscle recovery The brains glymphatic system clears metabolic waste products, including proteins associated with neurodegeneration Cortisol levels reach their daily minimum, allowing the adrenal system to reset Immune function regenerates Cellular repair mechanisms run at maximum efficiency Most adults spend less time in deep sleep than optimal, and this deficit increases with age, stress, alcohol consumption, and certain medications
Besides vitamin Cs skin lightening effects, it also helps repair damaged skin, improve collagen production and skin elasticity, and reduce redness, fine lines, and inflammation
Tonstad S, Nathan E, Oda K, Fraser G (2013) Vegan diets and hypothyroidism