Why do people seek to alter their consciousness chemically through narcotics, alcohol and other substances?

There is no one generally accepted answer for this. Some studies indicate that the tendency is hard-wired into our brains; some call it an “imperfect spiritual longing.” Conservatives in society consider it a form of misbehavior that calls for punishment, while progressive citizens recognize some forms of addiction as disease that requires treatment.

The controversy rages on, but whether it is a behavioral choice or an inborn tendency, the desire to “get high” is not unique to humans. Just ask any cat.

Nepeta, or catnip, is one of the most common weeds in North America, and possibly one of the most useful. Its effect on felis domesticus is well documented, particularly among cat owners; house cats who smell the essential oils of catnip from its bruised leaves and stems engage in bizarre behaviors that can most accurately be compared to alcoholic intoxication in humans - and in fact, this effect is not confined to domestic cats. Wild jaguars of Central and South America have been observed to react the same way when sensing the presence of catnip¹.

All very well and good, you say, but how is this one of the bulk herbs that offers any added benefits to humans?

Catnip does not have the apparent narcotic effect on humans. However, catnip is one of the safest medicinal herbs commonly available; its phytochemicals are mild enough and present in sufficiently low concentration to administer as a tea to young children who are upset or suffering from the cold or flu.

Catnip also has a sedative effect on adults, and is believed to aid in digestion as well. Catnip is most commonly consumed as dried herbs in the form of a tea, brewed from catnip that has been cut and sifted. Catnip tea may be brewed with a reusable cloth tea bag or tea ball.

“Stalking the Jaguar.” The Natural World.(British Broadcasting Corporation, aired 1 Feb 06)