→ means to sustain life ←)
The reasons for obesity are (
Overnutrition) (genetic factor)
functional lesion
)
Fluorine is a chemical element.
)
Noise will affect people (
Ear nerve, thus affecting health)
The main damage of fluorosis (nervous system
)
judge
Iron is the main raw material of red blood cells, and anemia will occur without iron.
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The best way to prevent fluorosis is to improve water quality and reduce fluorine content in water.
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Endemic goiter is caused by iodine deficiency, and the prevention and treatment method is iodine supplementation.
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To ensure labor hygiene, try not to participate in physical and mental work.
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