The hawthorn berry and flowers may improve blood circulation in the solar plexus first and then all other blood flows - to and from the heart. It may normalize blood pressure (whether it is high or low), and is used in many parts of the world as acute medicine for its fast action to normalize heart attack, lung functions, and heart/lung rhythm. It has proven its value in reducing serum cholesterol and preventing arteriosclerosis. If currently using pharmaceutical drugs to lower blood pressure, DO NOT use Hawthorn berry while on hypertensive drugs, which will cause bloodpressure to drop and produce dizziness. Used anciently to prevent miscarriage, hawthorn berry may strengthen muscle and nerve to the heart and uterus.