Have you ever tried to measure the temperature of water with your left hand and then with your right? Can you feel the difference? Yes, it’s not just you. Many people around the world cannot get a real idea of the heat of the water by testing it with just their left hand.
Why it happens like that, – this is what scientists decided to check by testing hundreds of volunteers in a large-scale study.
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It turns out that if a person has spent their whole life using their right hand to test the temperature of the water in the bath or shower, it has been trained to know what the “right” temperature is. The left hand only “knows” how to distinguish between hot and cold, scientists have found.
In their large-scale study, the researchers found that whether a person is left-handed or predominantly right-handed makes a huge difference. In left-handed people, the temperature of the water is felt better with the left hand.
And although the research may seem comical to some, it has very important results: through it, scientists have discovered that depending on whether a chef is left-handed or not, he can arrange dishes in a way that will burn the customer’s tongue.
The study found that the hand that did not correctly recognize the heat of the water also had a lower pain threshold.
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