Word: tetrahydrocannabinol
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Dates: during 1980-1989
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...preferred crop today is sinsemilla (a seedless marijuana produced through intensive cultivation of only the female plant) that has a very high concentration of tetrahydrocannabinol, or THC, marijuana's psychoactive ingredient. Sinsemilla produces a heady euphoria and sells for around $2,000 per lb. This is roughly the yield from a single plant. The sinsemilla produced by U.S. growers is so prized that seeds have been smuggled into Mexico and Colombia to enrich crops there...
Behavioral Effects. The principal active element in marijuana, delta-9-tetrahydrocannabinol (THC), like alcohol, impairs motor coordination, the ability to follow a moving object and to detect a flash of light. Since these functions are necessary for safe driving, the report notes, their impairment "may suggest a substantial risk." The effects may last four to eight hours after the time the user feels a "high," unlike alcohol, which is more quickly metabolized. Marijuana hampers short-term memory, slows learning and produces distortions of judgment, including reactions of panic and confusion. Consequently, there is special concern since much of the heavy...