Answer:
by affecting their behaviour (such as attendance at a screening programme; the food they eat; whether they take prescribed medication), or more directly by affecting a physiological system (such as the immune or cardiovascular systems).
I fins that in helps to remember and implement suffixes, especially in regard to health care. The suffix of breast is -mastia. The suffix of without is a-. So the answer would be Amastia.
B.or a cause i was in nursing for a year but i left sooo i hope i helped ~chelsea xoxo