For Maximum Caffeine Intake, Have Your First Cup Of Coffee At Work
Many people roll out of bed and cannot get their day started until they've had their first cup of coffee. I get it. I'm normally the same way. But a study recently revealed that that's one of the worst times of the day to take your coffee for maximum caffeine intake.
No...there's not more caffeine in coffee at different times of the day, but your body processes that caffeine differently at different times of the day. For instance, your body has it's highest levels of cortisol (the stress hormone) as soon as you get up. That makes the caffeine in that first cup less effective. Your cortisol levels also peak between noon and 1:00 PM, and between 5:30 and 6:30 PM. So you shouldn't have coffee then either.
For maximum effectiveness, either wait an hour after you get up or wait until you get to work.