A. Well you eat
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It can cause massive long term brain damage such as having a foggy brain, some can also lead to problems with your eyesight. But most importantly if receiving a concussion before one is healed can cause severe brain swelling.
He had a skin condition called vitiligo. Which is white patches all over the body. It's very common in all races. He chose to bleach his skin (white) to match these patches. Although there is a topical medicine that can be prescribed to help this.
More than likely.Not exactly sure Though