Today, this research as to the treatment of heart conditions has expanded a great deal. Hawthorn Berries are now often used to promote a healthy cardiovascular system, and are often used in the treatment of high blood pressure, congestive heart failure, and cardiac arrhythmia. The berries have also been found to aid in strengthening the heart and blood vessels. There is also some evidence indicative that they are helpful in the treatment of blood clots and the restoration of the heart muscle wall, with other evidence showing it to be quite effective in lowering cholesterol. Use in Europe of these purposes has become widespread, with the berries frequently seeing use in treatment of the early stages of heart disease, for which it is endorsed and approved by the German Government.