A study conducted by scientists at the University of Manchester in Britain showed that prolonged exposure to sunlight disrupts the internal biological balance of the skin and accelerates its aging process.
Scientists examined samples of skin regularly exposed to sunlight from volunteers participating in the study, and compared them to samples of their skin that were not exposed to sunlight and ultraviolet radiation. The results showed that chronic exposure to ultraviolet radiation weakens the daily rhythms of gene activity responsible for repairing skin cells and protecting DNA.
The researchers discovered that the coordination of cellular repair processes, which are normally active at night, is disrupted in sun-damaged skin, and this explains the development of inflammation, photoaging, and gradual damage to the skin structure after exposure to ultraviolet radiation.
Experts point out that the skin, like other organs in the human body, has its own "biological clock" that helps it adapt to the day-night cycle, so prolonged exposure to sunlight may reset these biological rhythms.
To maintain healthy skin, doctors advise avoiding regular exposure to strong sunlight or hot and cold air, and following a diet rich in vitamins, minerals, and natural collagen derivatives.
