Aviation Stories

Most of you may know that as little as 15 minutes of sun a 24 hours is adequate to enable our skin to make adequate levels of Calcitriol (Vitamin D). What you probably did not already know is that the dermal production of Calcitriol (Vitamin D) can be dampened by several different factors and can cause or make worse a vitamin D deficiency.Click here to view full Vitamin D reference with citations covering: aging, immune, and nervous system effects.Factor #1: Amount of Melanin in the Skin: The melanin content of the skin also determines how well the dermal tissues can make Calcitriol from sunshine. The more pigmented the skin is, the more difficult it is for your skin to manufacture Calcitriol (Vitamin D). This is because skin pigmentation is a natural sunscreen that filters out UVB radiation, which is necessary for vitamin D manufacturing.Factor #2: Sunscreen Use: In order for the ski puerh tea n to make Calcitriol, it needs UVB rays from sunlight. For this reason, sunscreens that block UVB radiation also reduce the ability of your skin from creating Vitamin D (Calcitriol). This is an very important factor to keep in mind, if you’re concerned about your Calcitriol levels, especially because sunscreen protects us from the sun?s damaging effects, which can be caused by the very same rays, including premature skin aging and skin malignancy.Factor #3: Age: Aging also decreases the skin?s natural ability to cutaneously synthesize vitamin D from sun rays. Scientific studies have shown that a seventy year old individual makes approximately 4 times less vitamin D from the sun than a twenty year old. Recognition of this difference is very important for the elderly who may spend minimal amount of time in the sunshine, and solely depend on exposure to the sun for their vitamin D needs.