When the skin is exposed to ultraviolet rays, the skin produces a molecule that is turned into Vitamin D.
Sun is the source of ultraviolet rays important for Vitamin D production. Due to this reason, in the case of Vitamin D deficiency, it is recommended by doctor's to absorb sunlight by skin. The Vitamin D production occurs specifically by UV B rays rays which lie in the range of 290-315 nanometer.
The chemical 7-dehydrocholesterol absorbs these rays and convert to previtamin D3. Further, previtamin D3 isomerizes to Vitamin D. Other than sunlight, Vitamin D can be taken through diet. The sources include seafood like fish, fish oil, dairy products, beef liver etc. Vitamin D is required for bone and teeth formation, muscle contraction, immune system etc.
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Answer:
Bones need to be set immediately, before they begin to heal, or they may heal crooked.
Answer:
The Limbic System is responsible for creating feelings of pleasure.
Answer:
Control or minimize the risk of intentional contamination.
Explanation:
A food defence plans helps to document the processes or procedures on how to control, minimise and totally stop if possible the risk associated with contaminating food intentionally.
It gives detailed procedure on how this can be achieved.
It also can be due to depression. people ends up having a hard time and they just don't know what else to do. they end up taking the wrong path and try to hide this pain
