Hot Water Ain’t More Effective

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Cool down bro: although recommended by some health organisations, using hot water when washing your hands isn’t going to wash away more germs. In fact, it’s not good: it can lead to irritated skin and is a waste of energy, according to a new study by researchers at Vanderbilt University. While it’s true that hot water can kill more germs, the temperature at which this is possible would be harmful to the skin. When scrubbing, rinsing and drying hands properly with cooler water, it reduces as much bacteria as warmer water. Using hot water wastes energy, say the researchers. In the study, 69% of the 510 participants thought that using hot water increases the efficacy of hand washing and 64% of them used hotter water most of the time. Researchers recommend using a “comfortable” temperature water for washing hands instead of warm or hot water. To keep away more germs, should you Handshake or Fist Bump?

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