Who Needs Sunscreen - Deepstash

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All Your Sunscreen Questions, Answered

Who Needs Sunscreen

The darker your skin the less likely you are to get sunburn or skin cancer. However, dermatologists recommend using sunscreen anyway.

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Vitamin D and sunshine

Vitamin D is essential for calcium absorption and many other biological processes. Lower levels of Vitamin D increase the rates of almost every disease like cancer, diabetes, osteoporosis, cognitiv...

Vitamin D supplementation

Getting vitamin D through supplementation shows zero benefits. A study over a period of 5 years found supplementing with Vitamin D had no impact on cancer, heart disease, or stroke.

A number of researchers now argue that people with high vitamin D levels are healthy not because of the vitamin, but because they get plenty of exposure to the sun. Vitamin D is just a marker of that fact.

Sunlight is good for you

A dermatologist discovered our skin uses sunlight to make nitric oxide, a molecule in the body that dilates blood vessels and lowers blood pressure.

He exposed volunteers to the equivalent of 30 minutes of summer sunlight without sunscreen. The result? The nitric oxide levels in the volunteers went up, and their blood pressure lowered. Because of the connection of high blood pressure to heart disease and strokes, this discovery can prevent millions of deaths globally.

Ultraviolet light is a type of electromagnetic radiation
Ultraviolet light is a type of electromagnetic radiation

UV light comes from the sun and is transmitted in waves or particles at different wavelengths an frequencies.

It makes black-light posters glow, and is responsible for summ...

The electromagnetic (EM) spectrum

EM is the broad range of wavelengths. It is divided into seven regions and ordered in decreasing wavelength and increasing energy and frequency, namely radio waves, microwaves, infrared (IR), visible light, ultraviolet (UV), X-rays and gamma-rays.

Ultraviolet light falls is the range of the EM spectrum between visible light and X-rays.

UV is generally divided into three sub-bands
  • UVA, or near UV (315-400 nanometers)
  • UVB, or middle UV (280-315 nanometers)
  • UVC, or far UV (180-280 nanometers)

Radiations with wavelengths from 10nm to 180nm are sometimes referred to as vacuum or extreme UV.

The more water you drink, the better

Water is necessary to life and a healthy beverage, but not in excessive quantities.

Your body can give you an indication of how much water it needs. It is better to drink to your thirst.

Getting a base tan can prevent sunburns

Tanning can increase your risk of cancer. Sun damage is the primary cause of wrinkles. 

“Detoxes” work

Your body can detoxify itself, provided you have a healthy liver and kidneys.

Detox diets may even harm you. Juices high in sugar can increase your blood sugar level. A juice fast may also lead to malnourishment.