If you've ever wondered why you sleep so incredibly well when you are on vacation by the sea, it's not a coincidence. In fact, some coastal populations are among the healthiest in the world, especially in the Mediterranean, which is known as a blue zone for its natural lighting and wellbeing benefits.
While your body's internal body clock works to regulate your sleep-wake cycle, it's heavily influenced by exposure to natural light, with cortisol hormones released in the morning to facilitate easier waking.
