It has been used and tested in Germany for almost 15 years. It is very popular and works like Prozac without problems. Ma Huang is an ephedra herb which energizes and acts like caffeine. If taken in large amounts in a person with high blood pressure it could exacerbate it. Its drug counter part would be the antihistamine sudafed.
Green tea is a stimulant like caffeine but also stimulates endorphins in the body.
The Chinese use it in place of our Coca-Cola. Old thoughts are fighting new thoughts. You have a love affair with yourself. Pleasure and self-love must be included in your weight reduction program. Remember you can love yourself even though you may consider yourself overweight.