Answer:
Diagnosing mental illness isn't like diagnosing other chronic diseases. Heart disease is identified with the help of blood tests and electrocardiograms. Diabetes is diagnosed by measuring blood glucose levels. But classifying mental illness is a more subjective endeavor. No blood test exists for depression; no X-ray can identify a child at risk of developing bipolar disorder. At least, not yet.
Thanks to new tools in genetics and neuroimaging, scientists are making progress toward deciphering details of the underlying biology of mental disorders. Yet experts disagree on how far we can push this biological model. Are mental illnesses simply physical diseases that happen to strike the brain? Or do these disorders belong to a class all their own?
Explanation:
There is many things she could do why'll playing tennis to get a better
benefit from the workout. For example before she plays take 3 laps
around the tennis court. Or why'll she is mid play she can run in place
to keep her heart rate up why'll waiting for the tennis ball to come
back to her.
It is not a real bone it is just a slang for either finding something to be humorous or a tingling sensation after bumping your body on something.
