In Traditional Chinese Medicine, the belief is that excessive weight gains are caused mainly by an imbalance in the body. This imbalance can be due to malfunctions of the spleen and liver organ systems. Skilled acupuncture practitioners can effectively target specific body areas to stimulate weight loss. The areas addressed involve the endocrine system and kidneys, treat water retention and stimulate nerve and hormonal rebalance. The spleen and thyroid gland are also targeted for sugar and hormonal rebalancing. Finally, the adrenal and ovary glands are addressed to treat weight gain due to menopause or premenstrual syndrome (PMS). Some people notice the effects of acupuncture fairly quickly.