You use it by first making a observation, second ask questions, third do background research, and fourth form a hypothesis
In terms of conditions, most are mental. Such as, insomnia, depression and anxiety. This could result in physical differentiations.
If you’re just looking for what can physically occur, strained eyes, cramped hands or headaches.
Answer:
According to the Harvard Study-
" This kind
of nondifferential misclassification
would tend to weaken the association
between whole grain intake and ische-
mic stroke risk and would not explain
the significant 40% lower risk rate for
ischemic stroke associated with a high
intake of whole grain."