Seeing Sunrise
TLDR - Seeing natural sunlight first thing each morning is important for supporting a strong circadian rhythm.
Note this information is mostly a repeat from the below posts:
The Importance of Seeing Natural Sunlight as the First Light
Optimal Circadian Signaling: Natural sunlight provides the full spectrum of light, including blue light, which is essential for signaling to your brain that it is daytime. This helps synchronize your circadian rhythm more effectively than artificial light.
Hormone Regulation: The initial exposure to natural sunlight helps regulate the production of cortisol and melatonin, ensuring that cortisol levels rise in the morning and melatonin levels increase in the evening.
Improved Sleep Quality: By setting your internal clock correctly at the start of the day, you are more likely to experience better sleep quality and duration at night.
Concerns With Non Native Light as the First Light
Seeing non natural light, such as siloed blue light, as the first light in the morning can disrupt our body's natural processes, which have evolved over more than 300,000 years to respond to the full spectrum of natural sunlight. Each part of this spectrum triggers various physiological responses. Exposure to the full spectrum helps synchronize our circadian rhythm, regulate melatonin production, and support overall hormonal balance. When we start our day with only blue light, it primarily stimulates cortisol release, the stress hormone, without initiating other crucial processes regulated by different wavelengths. This imbalance can lead to disrupted sleep cycles, hormonal imbalances, and long term health issues. The lack of exposure to the full spectrum of natural light in the morning can thus compromise our overall health and hinder our body’s ability to function optimally.