Sun is the giver of life in many belief systems. Soaking in sunlight is one practice that can transform your health. In just 10 to 30 minutes of daily sunlight exposure provides essential vitamin D , improves mood, helps regulate sleep patterns, and contributes to overall well-being. While sunlight offers numerous health benefits, it's crucial to balance exposure with proper protection against harmful UV rays. Here are some amazing benefits of soaking in the sun:
Source of Vitamin D
Sunlight serves as the primary source of vitamin D for the human body, earning it the nickname " sunshine vitamin ." More than 90% of our vitamin D comes from sunlight exposure. The skin absorbs ultraviolet-B rays, which triggers the conversion of a cholesterol molecule in the skin into vitamin D3, the active form of vitamin D. Adequate vitamin D levels support strong bones, a healthy immune system, improved mood, cardiovascular health, and proper muscle function. There remains considerable research out there to provide us with better information about each of those direct effects, but it's clear that vitamin D is an important mineral for our overall health.
Improved mood
The scientific connection between sunlight and mood improvement involves the pineal gland's activation. Sunlight seems to activate a specific part of the brain called the pineal gland, which is related to the production of serotonin and other neurotransmitters. Sunlight exposure increases serotonin levels, often called the "feel-good hormone," which helps elevate mood and may help combat depression and anxiety.
Maintains circadian rhythm
Natural sunlight plays a crucial role in regulating the body's internal clock, known as the circadian rhythm. Getting sunlight early in the day helps signal to your brain that it's time to be alert. While darkness tells your brain that it's time to get ready to sleep.
Keeps the weight off
Weight loss has been associated with spending 30 minutes outside between 8 a.m. and noon. It appears that early morning sunlight is linked to weight loss, while there may be other contributing variables to not losing weight.
Strengthens bones
Bone health is supported by vitamin D. The vitamin sunlight aids in the body's absorption of calcium, which is necessary for healthy bones and helps ward off diseases like osteoporosis and osteopenia. You can also prevent bone fractures (breaks) by maintaining good bone health.
Purifies the indoor environment
The majority of people are indoors most of the time. Additionally, dust from interior surroundings can harbor various germs, some of which can aggravate symptoms of allergies and asthma. According to one study, indoor dust bacteria can be killed by sunshine. In this study, only 1 in 16 dust bacteria survived exposure to sunshine, compared to 1 in 8 germs that survived in a darkroom setting. Increase the amount of sunlight that enters your house by opening your windows and shades. Your home's air quality may improve when the UV rays destroy microorganisms that reside in the dust.
Prevents seasonal depression
Research shows sunlight exposure can help alleviate symptoms of seasonal affective disorder (SAD), a type of depression triggered by seasonal changes. We know that sunlight is related to seasonal affective disorder, and there is likely some interplay between that aspect of mood and serotonin. A 2024 study found that spending more than one hour in daylight during winter helped protect against depression symptoms. An earlier study showed SAD patients who took daily one-hour morning walks outdoors for a week reported 50% improvement in symptoms.
The benefits of sunlight extend to improved sleep quality, energy levels, physical performance, stress reduction, and cognitive function, though ongoing research continues to explore these connections.
How much sunlight is necessary?
The amount of beneficial sun exposure varies based on individual factors, including skin tone, geographic location, season, and time of day. As with most things in medicine, moderation is key. There's always such a thing as too much of a good thing.
For those with limited access to natural sunlight, alternatives include light therapy, vitamin D-rich foods, and supplements under medical supervision. Phototherapy has been shown to be effective in improving sleep, circadian rhythms, and mood for people with seasonal affective disorder. The improvements from sunlight exposure on mood and other health conditions are hard to argue with. So, get outside and touch some grass.
Experts recommend consulting healthcare providers for personalized guidance on safe sun exposure while maintaining proper sun protection practices to prevent skin damage and cancer risk.