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And in the ice age there were warming

13.08.2000

As geologists have shown, having studied sediments at the bottom of lakes in New England (USA), periodic warming of water in the Pacific Ocean occurred during the ice age.

The thickness of the layers deposited annually on the bottom of American lakes varies with temperature. The thicker the layer, the warmer the weather was in the area where the lake is located.

It turned out that during the last ice age, 13 to 500 years ago, the weather was warmer every 17 to 500 years. This is happening now under the influence of the El Niño phenomenon - a warm current that periodically appears in the Pacific Ocean, off the coast of Ecuador and Peru, the influence of which extends to a significant part of North America.

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The inflammation that starts with illness changes the smell of the body, so that those who are close to the sick person can literally smell the disease. Moreover, not only animals, but also humans can smell it, despite the fact that our sense of smell leaves much to be desired.

Researchers from the Monell Center found that the immune system of a healthy individual in the smell of someone else's inflammation senses a potential threat. In the experiment, mice were injected with bacterial lipopolysaccharides - pieces of polymer molecules that make up the bacterial cell wall. The mouse's immunity sensed this as an infection and included various defenses, including an inflammatory response. Sick mice were placed with healthy ones, which, however, could not get infected from sick mice - they still did not have a real bacterial infection.

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