Sunlight at Work Beats Artificial Light for Glucose Control

This study published in Cell Metabolism found that exposure to natural daylight in an office setting improved glycemia and other metabolic parameters in people with type 2 diabetes compared to artificial lighting. The randomized crossover study showed that individuals spent more time in the normal glucose range with natural light, and had higher fat oxidation and plasma free fatty acid levels. The lead author recommends increasing exposure to natural light during the day, especially when combined with physical activity, for better metabolic health.