if this is a true or false then its true ig
Heart Disease,Hypertension,Obesity,Diabetes and Depression are all health risks of sleep deprivation.
definitely answer B, agegrgegrv
Explanation:
a) This is a retrospective observational study.
b) This is an appropriate choice due to the rareness of MS.
c) The subjects were US military personnel, some of which had developed MS.
d) The variables were the vitamin D blood levels and whether or not the person developed MS.
