61.   Three other prescription drugs, two of which are already on the market, alter brain chemicals to trick the body into feeling full.

62.   Velvet bean extracts are also a source of serotonin, a brain chemical that plays a key role in sleep and moods.

63.   -What important brain chemical is missing in people who put children and dogsin the back of pickups?

64.   What brain chemicals are used?

65.   While the SSRIs act to modulate the brain chemical serotonin, which controls moods, the newer medications act on both serotonin and noradrenaline, another brain chemical.

66.   Zyban is a slow-release form of Wellbutrin, an anti-depressant that works on two brain chemicals, dopamine and norepinephrine.

67.   Also, AChE interactions with other brain chemicals have been associated with memory and behavior.

68.   Another possibility, the study speculated, is that low levels of alcohol could stimulate the release acetylcholine, a brain chemical believed to facilitate learning and memory.

69.   Ecstasy, also known as XTC or E, affects serotonin, a brain chemical that regulates mood, emotion, sleep, appetite, memory and sexual behavior.

70.   Ecstasy affects serotonin, a brain chemical that regulates mood, emotion, sleep, appetite, memory and sexual behavior.