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What is Solar Urticaria? Solar urticaria (SU) is a rare skin condition characterized by hives, redness, and swelling of the skin. It is considered to be a form of light sensitivity and can result in pain and discomfort. It is caused by exposure to ultraviolet light and sometimes visible light. If you are susceptible you may even develop SU through light clothing. Researchers are not completely sure what causes solar urticaria, but it is believed that it is a type of allergic reaction to sunlight and/or other types of artificial light sources. It is classified as a physical urticaria. You...

Hyperpigmentation Hyperpigmentation is a darkening of the skin due to an overproduction of melanin. It can be brought on by various injuries to the skin, acne vulgaris, sun damage, and inflammation. It is most common in people with darker skin tones who spend a lot of time in the sun, although anyone with any type of skin tone may develop it. Examples of hyperpigmentation include liver spots, sun spots, age spots, melasma (mask of pregnancy), and freckles. Preventing hyperpigmentation in the first place is preferable, but hyperpigmentation treatment is possible. There are three types of hyperpigmentation: Epidermal Light brown spots,...

Sun exposure is responsible for most of the visible aging of your skin—far more than all other factors combined. Yes, UV rays from the sun are the primary cause of wrinkles, pigmentation, sun spots, reduced skin elasticity, the degradation of skin texture, and many other signs of skin aging. In fact, many scientific estimates have shown that up to 80-90% of how young or old you look for your age is due to how much sun exposure you’ve sustained. And this has been shown repeatedly, in different parts of the world, over many years and in many different clinical studies....

There’s a lot of confusion surrounding sunlight and the production of Vitamin D. People commonly think that if the sun is up and they are outside in the sun, they are going to produce Vitamin D. This is not the case! There are many reasons why you won’t make Vitamin D in the sun—even during the middle of the day. But most significantly, the sun cannot stimulate your production of Vitamin D if the sun isn’t high enough in the sky. UVB Rays And Vitamin D The reason is that UVB rays—and only UVB rays—catalyze the production of Vitamin D....

It’s true. The average vegetable or fruit produced today has significantly less vitamins and minerals than the varieties that were grown decades ago. And this decline in nutrients has been taking place for at least 50 or 60 years. How Much Have The Nutrients In Fruits And Vegetables Decreased? The landmark study on this topic was published in 2004 by Donald Davis. Entitled Changes in USDA food composition data for 43 garden crops, 1950 to 1999, the paper details the results of the measurements of 43 garden crops for 13 nutrients and how the data changed between 1950 and 1999....