As winter days shorten and sunlight diminishes, many individuals experience a dip in mood and energy levels. Approximately 20% of Europeans report a noticeable decline in spirits during the winter months, often referred to as the “winter blues,” a condition with well-established biological mechanisms. Understanding the connection between light, health, and well-being is crucial, as seasonal changes can significantly impact mental and physical health.
Light plays a vital role in our physical health, but likewise profoundly influences our mood, motivation, and overall psychological well-being. Many people experience a decrease in mood following winter due to the lack of light.
“Receiving light gives us a lot of energy, especially sunlight which produces vitamin D and acts directly on the body. It correctly regulates our sleep-wake cycle, which contributes to better health,” explains a recent report.
“White or blue light enhances our creativity, productivity, and stimulates the brain throughout the day. We also experience an improved mood and a greater sense of well-being when surrounded by more light.”
“A lack of light can be quite unpleasant and can also lead to depression or seasonal affective disorder. Conversely, excessive light, such as light pollution, or working night shifts can cause stress or even increase cancer risk. Neither too little nor too much light is ideal for regulating our bodies and maintaining well-being.”
As the winter season disrupts our internal rhythms, light is essential for restoring balance and energy. Maintaining a healthy sleep schedule and improving sleep quality are key components of overall wellness, and light plays a significant role in both.
“When we perceive a decrease in blue or white light – as the sun sets and casts yellow, orange, and pink tones – our bodies begin to secrete melatonin, the sleep hormone. Once it’s completely dark, we are full of melatonin and can fall asleep peacefully. In the morning, white or blue sunlight increases, releasing the awakening hormone, cortisol, signaling us to become active. This rhythm is very important for good health. It’s therefore important to prioritize blue and white light during the day and yellow, orange, and pink light at night.”
When spending time in the office, commuting, or using public transportation, it’s not always possible to benefit from natural light. However, there are solutions to compensate for this lack, including light therapy, which replicates the beneficial effects of natural light.
“During commutes, we are exposed to intense, white artificial light, which promotes wakefulness, creativity, and productivity. However, when we return home in the evening, it’s important to leverage more diffused, yellow, or amber lamps. If mood is low and the environment isn’t very bright, consider light therapy, a form of therapy using lamps or wake-up lights that mimic the sun’s rhythm. Also, consider vitamin D supplements, as vitamin D levels often decrease with insufficient sun exposure.”
This information was originally featured in a Phare FM broadcast.
