Các nhà nghiên cứu Viện Y tế Quốc Gia (NIH) discovered the body’s heavy reliance on daylight in the 80s. Their research notably confirmed that the lack of light during the winter could cause mood disorders. Light blocks the secretion of melatonin, the sleep hormone, and promotes the secretion of serotonin, a hormone that works against depression. 

Today, more than 18% of the Quebec population and more than 15% of the French population suffer from winter blues, which when symptoms persist, can become a seasonal depression.

The symptoms of winter blues make everyday life more painful. Fatigue, lack of enthusiasm, a tendency to stay locked up, laziness, gloom, melancholy and boredom tend to be felt… but are not irremediable. Discover our advice to fight against the little blues of winter.