What medical discovery was co-authored by a furniture upholsterer? Detailed answer

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What medical discovery was co-authored by a furniture upholsterer? Detailed answer

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What medical discovery was co-authored by a furniture upholsterer?

For several decades now, doctors have been dividing all of us in terms of the risk of a heart attack into two types - A and B. People with a psychological type A are distinguished by their mood for competition, competition with others, they are always wrapped up, take their duties very seriously and responsibly, they are constantly enough time. This type of behavior is no less dangerous for the health of the heart and blood vessels than smoking or high blood cholesterol. People with type B behavior are much more calm, relaxed, complacent, sometimes even lazy, more friendly, have an easier attitude towards life and are less likely to fall into the hands of cardiologists. A simple upholsterer of furniture drew the attention of doctors to such a pattern.

In the mid-1950s, the caretaker of the cardiology wing of a San Francisco clinic invited an upholsterer to reupholster the chairs used by patients. After inspecting the front of the work, the specialist said to the caretaker: “Your patients are strange. Who sits like that? Look: a few inches in front of each seat and the first few inches of the armrests are worn out. It looks like your patients are sitting on the very edge of the chair and fidgeting, clutching the armrests. There is nothing like this in the urological, neurological, or surgical buildings!"

The supply manager conveyed this curious remark to the head physician. At first, he did not attach any importance to it, but five years later, when his own studies showed that angina pectoris and heart attacks were mostly nervous, internally tense people, he remembered the accurate observation of the upholsterer, began to conduct special psychological tests, called for help from psychologists and in eventually formulated the theory of two types of personality.

Author: Kondrashov A.P.

Random interesting fact from the Great Encyclopedia:

Is a dolphin a mammal?

It's hard to believe that a dolphin is not a fish, but a mammal. Nevertheless, he is the same mammal as, for example, a cow grazing on the lawn. Dolphins and whales are classified as cetaceans, or a group of marine mammals.

There are many differences between dolphins (and other cetaceans) and fish. Dolphin babies are fed with milk, like other mammalian babies. They do not hatch from an egg, but are born immediately alive. Dolphins do not have gills and breathe with lungs.

If we consider the internal structure of dolphins, we will find a skeleton, circulatory system, brain and other organs that do not resemble the internal structure of fish. Another important difference is the presence of subcutaneous fat in dolphins. Mammals are warm-blooded animals, and fat allows them to maintain a constant body temperature in cold water.

Regular dolphins are about 1,6 meters long. The head is round in front, and the lower jaw protrudes slightly. The dolphin has a large mouth with 80-100 teeth. From above, dolphins are black or gray in color, and their belly is white with black fins.

Dolphins prefer to live not in the open sea, but closer to the coast. They inhabit the northern Atlantic, but are quite rare in the Mediterranean. Dolphins live in large flocks and seem to enjoy following ships.

There are several species of dolphins found in the South Atlantic and the Pacific.

Dolphin oil, which is produced from the delicate fat of the head and jaw, is used as a lubricant in the manufacture of watches and other precision instruments because it does not stick together or freeze at very low temperatures.

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