How Long Will Caffeine Buzz Last? Genes May Tell
If one cup of coffee keeps you perked up all day, you may be able to thank your genes for that long-lasting caffeine kick, a new study finds.
Scientists in Scotland have identified a gene that may play a role in how the body breaks down caffeine, according to the study — and variations in this gene may influence how much coffee a person drinks.
In people with a certain variation of a gene called PDSS2, caffeine is broken down in the body more slowly, according to the study, which was published today (Aug. 25) in the journal Scientific Reports. Slower breakdown means that the caffeine stays in the body longer, so a person doesn’t need to drink as much coffee to get the same effects, the researchers said.
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