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Attention, chocolate lovers: You may not be able to help yourselves. Swiss and British scientists have linked the widespread love of chocolate to a chemical "signature" that may be programmed into our metabolic systems.
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A- (prefix)
A- (prefix): Prefix much employed in the health sciences indicating ônot, without, -lessö as, for example, in alexia (not read), aphagia (not eat), aphonia (not voice, voiceless). The ôa-ö usually becomes ôan-ö before a vowel as, for example, in anemia (without blood), anotia (no ear), anoxia (no oxygen). The prefix ôa-ö comes from the Greek meaning ônot.ö