We do not recognize medically a blood pressure reading that is too low, except in cases of shock. When the blood pressure is low, if the pulse pressure is sufficient to maintain circulation, it is considered normal. We do not know the exact level at which high blood pressure begins to be damaging, but statistical comparisons show that vascular diseases are more common as the blood pressure rises. Since high blood pressure seems to have a definite tendency to be inherited, those having high blood pressure in the family should be especially careful on all the points given to prevent the disorder. Do some useful labor, such as gardening or yard work, at a moderate pace for about one hour each day.
Outdoor labor is usually more beneficial than indoor labor.
Even the sense of satisfaction of work well done is stabilizing to the blood pressure. Run in place for six minutes twice daily to reduce the blood pressure. Starting with the muscles of the legs, thighs, and back, tense the muscles as much as possible and hold for several seconds. Next, tense the muscles of the abdomen and chest. Repeat the tensing and slow relaxation process with these areas until all tension is gone.