Saturday , January 29 2022

pain: forget the stereotypes, the new study shows that women are less sensitive to pain than men



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TORONTO: Women tend to forget the pain they experienced faster than men, confirmed a new study with mice and humans, challenging the widely accepted belief that a fairer sex is more sensitive to pain than men.

A study conducted by researchers from the Mississauga (UTM) at the Toronto University in Canada showed that men and women otherwise remembered their previous painful experiences.

Although men (and male mice) obviously remembered the painful experiences of the past, women (and mice) do not seem to be forgotten.

When the pain was painful again, the men remembered that they were stressed and hypersensitive, but the women did not emphasize their previous pain.

"If the remembered pain is the driving force of chronic pain and we understand how the pain is remembered, we may be able to help some patients treat the mechanisms in memory," said leading author Lorens Martin, UTM docent.

"It was even more surprising that men reacted more because it is well known that women are more sensitive to pain than men, and that they are usually more stressed," Martin added.

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For the study published in the magazine "Current Biology", the team conducted experiments with both humans and mice, where they were taken to specific rooms and made to experience a low level of pain caused by the heat that was delivered to their hind paw or forearm.

In addition, people were asked to wear a tightly inflated cuff and use their hands for 20 minutes while each mouse received a diluted vinegar injection that caused abdominal pain for about 30 minutes.

The next day, the participants returned to the same or another room, and the hot or rear paws were again exposed to heat, men rated the heat pain higher than the previous day, and higher than the women.

Similarly, male mice returning to the same environment showed an increased heat pain response, but mice placed in a new and neutral environment did not.

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