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Medicine Facts

The Placebo Effect

To test new drugs, researchers usually divide their subjects into two groups. One group receives the experimental drug. The other receives a placebo or 'sugar pill' that should have no effect on the ... Continue reading

Which of these pills is the real thing?

Hypotension

Bend to select a book from the lowest shelf, then rise quickly. Chances are, you'll feel a little lightheaded for a few seconds. The reason is a drop of blood pressure caused by the change in ... Continue reading

When Motherhood Means More than One

These days, twins, triplets, and other multiple births are becoming more common, but how do they happen? Fraternal twins (or triplets, quadruplets, or more) develop when two or more eggs are ... Continue reading

Mad Cow Disease

In 1986, the first case of 'mad cow' disease or bovine spongiform encephalopathy (BSE) was found in cattle in Great Britain. Irritable personalities, fearful behavior, and a staggering gait preceded ... Continue reading