Yes- but the half life of the first metabolic by-product (which is more powerful) is at least 5 hours, if memory serves. The methyl-xanthanes aren't among my favorite group to teach (being neurotoxic and great insecticides, btw) so I always have to go back and look it up before teaching it. It also can depend on other factors how quickly elimination occurs, etc. Tim S.
_________________________________________________ Timothy O. Shearon, PhD Albertson College of Idaho 2112 Cleveland Blvd. Caldwell, ID 83605 [EMAIL PROTECTED] teaching: History and systems; Intro to Neuropsychology; Child Development; Physiological Psychology; Psychology and Cinema -----Original Message----- From: DeVolder Carol L [mailto:[EMAIL PROTECTED] Sent: Thursday, September 30, 2004 8:46 AM To: Teaching in the Psychological Sciences Subject: RE: short-term effects of nicotine and caffeine The half-life of caffeine is about 3 hours under normal circumstances--but there will most definitely be individual differences. Carol -----Original Message----- From: David Epstein [mailto:[EMAIL PROTECTED] Sent: Thursday, September 30, 2004 9:35 AM To: Teaching in the Psychological Sciences Subject: Re: short-term effects of nicotine and caffeine On Thu, 30 Sep 2004, Miguel Roig went: > Hi, folks. A student asked me some questions about the short-term > effects of smoking and of drinking coffee that I could not answer. > Does any one know or can anyone speculate on how long such > short-term effects last after smoking one or more cigarettes or > sequentially drinking one or more cups of coffee? Subjective effects? Health effects? > TIA. Transient ischemic attacks? :) --David --- You are currently subscribed to tips as: [EMAIL PROTECTED] To unsubscribe send a blank email to [EMAIL PROTECTED] --- You are currently subscribed to tips as: [EMAIL PROTECTED] To unsubscribe send a blank email to [EMAIL PROTECTED] --- You are currently subscribed to tips as: [EMAIL PROTECTED] To unsubscribe send a blank email to [EMAIL PROTECTED]
