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    1. #1
      Anti-asshole activist -Blakren-'s Avatar
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      How long does caffeine stay in your system?

      Sometimes I drink some pop before bed to keep my mind semi active while asleep. It helps me have LDs, sometimes. I was just wondering how long it will stay in my system. I am 120 pounds, 5 foot 9.

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    2. #2
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      3-6 hours usually seems the average but it depends on how much you drink and it varies individually.

    3. #3
      Cosmic Citizen ExoByte's Avatar
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      The effects of caffeine can last a good while. A cup of coffee at 4:00pm, and I'll still have insomnia by midnight when trying to sleep.

    4. #4
      Legend Jeff777's Avatar
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      Quote Originally Posted by -Blakren- View Post
      Sometimes I drink some pop before bed to keep my mind semi active while asleep. It helps me have LDs, sometimes. I was just wondering how long it will stay in my system. I am 120 pounds, 5 foot 9.
      As long as caffeine is in your blood, it's effects will also manifest.

      The time it takes for the body to eliminate one half of a caffeine dose is normally between 3 to 12 hours. It is called the half-life of caffeine. Several factors can shorten or lengthen the half life of caffeine. Smoking, medications and diseases are some factors. Pregnant women have higher caffeine half-life, 18 to 20 hours - pretty much longer for the fetus since its organs are not yet fully formed to be able to eliminate caffeine easily. About 99% of the elimination process takes place in the liver.

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    5. #5
      Miss Sixy <span class='glow_FFFFFF'>Maria92</span>'s Avatar
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      It varies, but for most people, a single shot of coffee can stay in the system for 6-12 hours, or longer. In small doses, though, it can *theoretically* keep the conscious mind awake a bit more while the rest of the body goes to sleep.

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    6. #6
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      The more melatonin in your system (at night), the slower your metabolism. That's why a cup of coffee in the morning only will wire you for like 2 hours, but why exo's 4 o'clock coffee keeps him up.

    7. #7
      Random noob Mjs961's Avatar
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      If I drink caffine after 3:30 I won't be able to sleep.

      But it could be a placebo...

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