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Pastimes : Let's Talk About Our Feelings!!! -- Ignore unavailable to you. Want to Upgrade?

To: epicure who wrote (106187)	6/17/2005 11:24:56 PM
From: epicure	Respond to of 108807

Also interesting: safety-council.org The psychoactive chemical in marijuana is tetrahydrocannabinol (THC). THC has a very different effect from alcohol. Pot users are acutely aware of their impairment - that is, they feel "high" - and some try to compensate by driving more cautiously. THC diminishes psychomotor skills and attention span. It reduces the ability to perform tracking tasks; at high doses, users drive less accurately and show difficulty with steering. Alcohol additionally impairs cognitive function, including risk perception, decision-making and planning. It can also trigger aggressive driving behaviour such as speeding and following too closely. For alcohol, levels of impairment have been correlated with specific concentrations in the blood. No such correlation is available for THC. Complicating the issue, THC can be detected in the body for up to four weeks, although its impairing effects do not last. Studies indicate that the effect of cannabis use on driving is related to the dose. Some claim that a single glass of wine will impair driving more than smoking a joint. However, the potency of a joint can vary considerably. Driver use of cannabis is of particular concern when combined with alcohol. The combination increases a drinking driver's risk of being responsible for a crash. Further research is needed in order to establish a THC level at which the substance criminally impairs driving ability, and how to assess drivers.