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.
The answer would most likely be joking
Acute exposure to high altitude can affect the cardiovascular system by decreasing oxygen in the blood (acute hypoxia). It also increases demand on the heart, adrenaline release and pulmonary artery pressures.
I hope this helped:))
<span>a. tearing or stretching of a joint with mild ligament damage.</span>