AS A practicing hypochondriac it was of particular interest to me to learn about a research company in, of all places, Iceland, which is making what could be historic advances in medicine through the study of human genetics.

This company, deCODE genetics, is exploiting a most unusual data base: that of the total population of Iceland where excellent records have been kept since Norwegian and Celtic (Scottish and Irish) settlers arrived there about ten centuries ago. Today there are only slightly more than 300 000 Icelanders, of whom 94 percent are descended from the original settlers. For gene searchers this is, apparently, like a gift from heaven.

It is akin to having a vast private laboratory, enabling research on thousands of volunteers uniquely related in a manner which renders the search for genetic clues to future health problems. For example, more than 50 000 Icelanders, that is one-sixth of the population, participated in research into the disposition to smoking and, for smokers, the inherent risks of contracting diseases linked to nicotine.

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