That “get daylight in your eyes in the first 30-60min of your day (or once the sun is up i

Well SupportedA normal cortisol rhythm involves high levels upon waking, a rise a couple of hours after waking, a fall in the afternoon, and low levels at bedtime.

Well SupportedViewing bright sunlight in the morning increases the amplitude of the morning cortisol spike by 50%, which is beneficial.

Not SupportedExcessive light exposure at night, particularly from bright lights, can disrupt sleep by negatively impacting the neurons in the eyes that perceive ambient light.

Partially SupportedLimiting late-day caffeine intake and practicing long exhale breathing before sleep can help lower heart rate, reduce cortisol, and aid sleep.