Look up in the sky and you will be marveled to see the life-giving force known as Sun. The Sun is the star that is central to our Solar system. It is the brightest object in our sky comprising mainly of Hydrogen and Helium.
Sun is life giving force and majorly responsible for providing light, heat and energy to our planet. When we say Sun is a life giving force, it means that without Sun all essential life sustaining functions would cease.
As per researches, we are certainly able to say that Sun has impact on everything on our dearest planet Earth starting from oceans, weather, climate, and radiations.
Sun produces various wavelength of light comprising mainly of visible light, gamma rays, x-rays, ultraviolet, infrared, microwaves, and radio waves.
At the top of Earth’s atmosphere sunlight is composed (by total energy) of about 50% infrared light, 40% visible light, and 10% ultraviolet light. The atmosphere in particular filters out over 70% of solar ultraviolet, especially at the shorter wavelengths.
Solar ultraviolet radiation ionizes Earth’s dayside upper atmosphere, creating the electrically conducting ionosphere.
Why Sun is important for our body’s essential functions ?
There is obviously a great amount of spectral difference between sunlight and artificial cool white light, and therefore natural light from Sun has the greater beneficial impact on human’s health.
Before we look into the role of sunlight in human’s health, did we ever wonder that there is a planet/star who helps us to carry on our daily activities flawlessly?
Just visualize a condition when Sun does not rise or disappears for couple of days together. Everything gets dark and cold.
How would you feel? Uncomfortable?
Would you be able to understand when to sleep?
Now this is something that shows sunlight is very important for our mental and physical wellbeing.
Sunlight enters our body through two different pathways: Eyes and Skin.
- When we open our eyes in the morning, god made mechanism in eyes gets activated and captures the light and converts it into electrical signal that are transmitted to visual cortex of the brain. These signals are also sent to suprachiasmatic nucleus also known as main clock of human brain which controls the sleep patterns.
- Second path used by natural light to enter our bodies is through the skin. Spectral regions of UVB, UVA and visible lights are absorbed by Blood, Melanosomes, and keratin in human bodies by a specified mechanism.
Serotonin, a neurotransmitter in the brain (SCN) is induced by light which helps in waking and energising. Thereby, light controlling the circadian rhythm of our body which in turn controls various different hormones.
As we all know, UVB wavelengths helps in synthesis of Vitamin D3.
As per research by Dr. Edward Giovannucci, a professor of medicine at Harvard University, appropriate Vitamin D synthesis significantly helped to protect individuals against lymphoma and cancers of the lung, prostate and, ironically, the skin.
The high energy UVB absorbed by eyes stimulate the neuroendocrine system that in turn stimulates hormones having an impact on sexual development and psychological moods, including depression.
A/C to Dr. Gaurav Malik – Founder of 360 wellness solution, Seasonal affective disorder can be found in many occupants of buildings with low level of exposure of sunlight, and this gets exponentially increased during winters.
- Patients of Alzheimer, Parkinson, stress, anxiety and depression would benefit in a room with sunlight’s UV rays exposure. Sunlight exposure has till now helped many patients of Alzheimer and Parkinson.
- People above 60 years would benefit in a room that has got all day exposure of Sunlight. This would help them in maintaining their physical health and achieving good social contact by keeping them active mentally.
- Postmenopausal women should occupy a room in home with extensive sunlight.
- Patients post Gall-bladder surgery would be helped with wide sunlight’s landscaped views.
- People with chronic pains would be helped in a room with wide exposure of sunlight.
- As per European medical recommendation, workers within 27 feet of large windows would be filled with positive thoughts and thereby lead to better performance.
- Effective exposure of sunlight in bathrooms would help in decreasing the level of common infectious disease amongst the occupants of that building.
- People with frequent headaches and seasonal affective would certainly help with wide exposure of sunlight in their rooms. However, exposure should be increased gradually.
- It also helps in slowing down of dental decays in children and old aged people.
The power of sun is immeasurable and a lot is still unturned. We are using it and benefitting from it. If you have any query or doubts which need further discussion, please comment below. Your valuable feedback on this issue highly appreciated and responded to.