Genes With The Power To Block Odor

Some lucky people can walk into a crowded locker room and not have to plug their nose. New research shows this is because their genes block the stench.

Researchers in Israel had study participants sniff varying concentrations of samples that smelled like banana, spearmint and sweat.

They found those who were not bothered by the smell of sweat had specific gene mutations. Those who were hypersensitive to the odor had genes that were fully intact.

They also found women had a heightened sense of smell compared to men. Researchers say humans have nearly one thousand genes related to our sense of smell, but evolution has deactivated nearly half of them.

Experts say environmental factors also play a role in sensitivity to certain smells.

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