Weak handshakes are often frowned upon, but they may be healthier than firm ones. A fist bump, though, may be an even healthier choice.
British researchers did a simple experiment. After dipping a gloved hand into a dense culture of Escherichia coli, a bacterium commonly found in human intestines, an experimenter shook hands, bumped fists or high-fived with a person wearing a sterile glove. They repeated the tests several times and analyzed the gloves for transmission of germs.
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