According to CBS News, a stimulant found in dietary supplements that promote weight loss and increased athletic ability may be to blame for a hemorrhagic stroke in a woman who took the supplement before exercising. This is the first case to suggest a connection between the man-made BMPEA, an amphetamine-like compound, and exercise-induced stroke. After the woman was admitted to the hospital, researchers analyzed the supplement and found a high dose of BMPEA, an ingredient not listed on the bottle. This comes after the FDA sent warning letters last month to five different companies, instructing them to stop selling products containing this potentially dangerous compound. Physicians are urged to report any adverse reactions in patients taking supplements to the FDA.