Detailed answer

Environmental factors, such as exposure to UV radiation from the sun and pollution, can accelerate the breakdown of collagen and elastin in the skin. Collagen and elastin are proteins responsible for maintaining the skin's structure and elasticity. When these proteins are damaged, the skin becomes more prone to sagging and wrinkling. Additionally, environmental factors can promote the production of free radicals, which are unstable molecules that can cause oxidative stress and further damage the skin's supportive structures. To protect against sagging skin, it is important to minimize sun exposure by wearing sunscreen, seek shade when the sun is strongest, and protect the skin from pollution with a barrier cream or antioxidant-rich skincare products.