WHY is already exhausted air bringing a person to their senses during artificial respiration?
As we know, if you stay in an airtight room for a long time, you can suffocate, since during breathing the amount of oxygen in the air decreases and the amount of carbon dioxide increases.
However, contrary to popular belief, a person does not exhale pure carbon dioxide but a mixture of gases that contains 16-17% oxygen and about 4% carbon dioxide. (For comparison: atmospheric air, which is 21% oxygen, contains a negligible amount of carbon dioxide - 0.04%.)
This oxygen is enough to bring a person back to life by artificial respiration - from mouth to mouth or from mouth to nose. Such stimulation sometimes takes a long time, up to an hour and a half.
WHY is already exhausted air bringing a person to their senses during artificial respiration?
As we know, if you stay in an airtight room for a long time, you can suffocate, since during breathing the amount of oxygen in the air decreases and the amount of carbon dioxide increases.
However, contrary to popular belief, a person does not exhale pure carbon dioxide but a mixture of gases that contains 16-17% oxygen and about 4% carbon dioxide. (For comparison: atmospheric air, which is 21% oxygen, contains a negligible amount of carbon dioxide - 0.04%.)
This oxygen is enough to bring a person back to life by artificial respiration - from mouth to mouth or from mouth to nose. Such stimulation sometimes takes a long time, up to an hour and a half.
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Spiking bond yields driving sharp losses in tech stocks
A spike in interest rates since the start of the year has accelerated a rotation out of high-growth technology stocks and into value stocks poised to benefit from a reopening of the economy. The Nasdaq has fallen more than 10% over the past month as the Dow has soared to record highs, with a spike in the 10-year US Treasury yield acting as the main catalyst. It recently surged to a cycle high of more than 1.60% after starting the year below 1%. But according to Jim Paulsen, the Leuthold Group's chief investment strategist, rising interest rates do not represent a long-term threat to the stock market. Paulsen expects the 10-year yield to cross 2% by the end of the year.
A spike in interest rates and its impact on the stock market depends on the economic backdrop, according to Paulsen. Rising interest rates amid a strengthening economy "may prove no challenge at all for stocks," Paulsen said.
