Medicine: Blood Will Tell

The old saw that "blood will tell" is gaining new meaning from medical research. Last week the British Medical Journal published a series of reports by three research teams. Among the findings: ¶ People with blood of Type O are 35% more likely than others to suffer from peptic ulcers.

¶ During pregnancy, a Type 0 woman is more likely to develop toxemia. ¶ The danger of lung cancer seems unrelated to the ABO groupings, but one study suggested that Rh-negative people are slightly less subject to this fast-increasing disease than others. ¶ Cancer of the stomach is significantly commoner among Type...

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