How Sun Affects Human Health?

Jinny Rana
May 09, 2019   •  52 views

SUN, the biggest source of energy to this planet, is sometimes too hard on us, especially in the summers. Apart from the obvious vitamin D supply, each phase of the sun has a different effect on human beings. The sun for only having negative effects on our health, it does have positive effects on our overall good health.

Enhances your mood
There are many good benefits from sun rays, including that it is also a mood enhancer. Being in the sun can make you have more energy and feel better. It increases the level of serotonin in the brain responsible for improved mood.

Relieves stress

Everyone experiences everyday stress from various factors like family, work and health issues. It says stress can be relieved including exercise, having stress relaxing hobbies, walking your pet and getting out to have little sun exposure.

Vitamin D

It involves vitamin D in maintaining the health of bone strength. One way this sun vitamin is exposure to the UV light from the sun. However, to reap the sun benefits only 15mins of sun exposure is enough for all the vitamin D you need.


Sun damage to eyes
For long-term, unprotected sun exposure to UV light can damage the retina. The retina at the back of the eye where the visual image forms. Damage from sunlight causes the development of cloudy bumps, which grow over the cornea and prevent clear vision.

Heat exhaustion

According to the Centres for Disease Control and Prevention (CDC), through excessive sweating, heat exhaustion results in excessive loss of water and salt from the body. People working under an excess hot environment are at a high risk of heat exhaustion.

Symptoms include:

  • Headache

  • Weakness

  • Thirst

  • Heavy sweating

  • Dizziness

  • Body temperature elevation

Heat stroke
If heat exhaustion is left untreated, it further leads to a sunstroke. It is the most serious heat subjected to illness that can be life-threatening. According to the CDC, it causes a sudden rise in a body’s temperature, which requires immediate medical attention.

Symptoms include:

  • Altered mental status

  • Loss of consciousness

  • Dry skin or sweating

Sunburn is recognized as the most common harmful effect of too much sun exposure. The study says it rarely appears until four to five hours after the sun exposure. UV causes sunburn, which comes from the sun or tanning.

Symptoms include:

  • Redness

  • Tenderness / pain

  • Blisters

  • Flu symptoms

Skin Cancer
The long-term worst consequences of sun exposure are the development of skin cancer. Since the sun damage develops over years, the older you are, the greater the risk of cancer. It provides a look for three common skin cancers: basal cell carcinoma, squamous cell carcinoma, and malignant melanoma.

Wrinkles / Aging

Usually, we associate wrinkles with aging, but sun exposure is also a factor for how early they appear. UV light damages the elasticity and collagen of skin tissues, which does not get back in shape and become more fragile, causing sagging.


Much of the sun damage prevented by applying sunscreen 20mins before going out. It should be reapplied after swimming or sweating. You can also go for UV filtering sunglasses, long sleeves, and hats.


Before the sun rises, it set the bio-alarm in all animals and living beings, including plants, etc. early morning sun is good for your eyes. Morning sun rays aid you in energy enhancement. Afternoon sun drains out the energy and balances it with hunger and thirst. Evening sun soothes and calms your mind, inducing you to rest. Twilight of the evening resets the bio clock.