This could be a case of Obsessive-Compulsive Disorder (OCD) considering people with this condition have the urge to do certain things repeatedly as a way of banishing the scary thoughts or making sure they are safe or even clean.
The answer is what I'm assuming to be the second one, I've done research and iron affects the bone metabolism which in turn benefits strong bones. Treatment for iron deficiency can prevent blood clots. Over all the answer is the second list.
Answer:
"My mother said she always used a glass thermometer when I was a kid and it was very accurate. Maybe that would be better."
Not taking good care of themselves. Not being active, poor hygiene, bad diet, weak immune system etc