The term that describes an illness that affects the mind and reduces a person's ability to function, adjust to change, and get along with others is called, "Mental Disorder".
Inspect your home
Be very careful with space heaters.
Check your appliances.
Check the air conditioning and heating unit in your home.
Check the natural gas/LP gas system in your home.
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It's late but for anyone else who needs it, it's:
Create a log of what one eats each day.
Critique one's diet for overall balance of key nutrients.
Identify personal barriers that prevent an individual from making poor food choices.