Valerian (herb) particular binding site. Hydrophilic extractions of the herb commonly sold over the counter, however, probably do not contain significant amounts of isovaltrate. Valerenic acid in valerian stimulates serotonin receptors as a partial agonist, including 5-HT which is implicated in the sleep-wake cycle. The chief constituent of valerian is a yellowish-green to brownish-yellow oil present in the dried root, varying in content from 0.5 to 2.0%. This variation in quantity may be determined by location; a dry, stony soil yields a root richer in oil than moist, fertile soil. The volatile oils that form the active ingredient are pungent, somewhat reminiscent
They Don't Make Them Like They Used To #2. Two singles came from the album. The title cut, released at the end of 1986, only made #53 in the country charts although it did well by hitting #10 on the contemporary charts. When RCA released "Twenty Years Ago" in 1987, however, Rogers returned to the top five at #2, matching this feat in Canada as well. They Don't Make Them Like They Used To They Don't Make Them Like They Used To (also referred to as "They Don't Make 'Em...") is the nineteenth studio album by country superstar Kenny Rogers. The album's title cut was used as the