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dracodraconisIn Men, Caffeine Is More Effective And Starts Working In 10 Minutes
A recent study seemed to demonstrate that men are affected more quickly and more strongly by caffeine than women. They also discovered that both sexes are affected by decaffeinated coffee but women take longer to feel the effects, just as with regular coffee. This study also showed that effects can begin in as little as 10 minutes with the maximum effect occurring after about 45 minutes when the maximum blood concentration has been reached.