This little trick helps limit age-related sleep problems

The quality of our sleep often declines over the years, leading to fatigue and mood disorders. But a surprisingly simple solution can make a difference: Expose yourself to natural light.

A study conducted by researchers from inserm Turns out this exercise stimulates our biological clock, promoting more restful sleep. This finding, especially relevant for older people, highlights the importance of rethinking our daily habits.

Natural light, sleep ally

Natural light plays an important role in controlling our sleep. It acts as a third regulator after the circadian clock and homeostasis. By stimulating specific cells in the retina that are sensitive to blue light, it helps synchronize our biological clock with the day/night change.

However, as we age, the lens of the eye yellows and allows less blue light to pass through. This phenomenon reduces the effectiveness of this natural synchronization. Therefore researchers suggest increasing exposure to natural light to compensate for this effect.

practical implications

For the elderly, especially in nursing homes, lack of exposure to natural light can worsen sleep problems and accelerate cognitive decline.

Modern buildings, often poorly lit, exacerbate this problem. Experts recommend more powerful indoor lighting, reaching at least 1,000 lux, and regular exposure to outdoor light, even in winter.

A simple and free solution

The good news is that taking advantage of natural light doesn’t require financial effort: a simple daily walk is enough. Even in winter, when the days are shorter and there is less light, outdoor contact remains beneficial.

Furthermore, rethinking interior lighting, especially in retirement homes, can significantly improve the quality of life of residents.