Tweeted twitter.com/StackChemistry/status/967202724063449088
2 slight clean up
source | link

If the half life of Caffeine is ~6 hours, why Why do people consider itcaffeine ineffective after its half-life?

Assuming you take 200mg$\pu{200mg}$ of caffeine;caffeine, it's half life is ~6roughly 6 hours.

  So after 6 hours there should still be 100mg$\pu{100mg}$ of caffeine in your body.

Then why is it generally said that after 6six hours caffeinescaffeine's effect should wear off? Shouldn't it only be diminished since there is still 100mg$\pu{100mg}$ of caffeine in your body?

If the half life of Caffeine is ~6 hours, why do people consider it ineffective after its half-life?

Assuming you take 200mg of caffeine; it's half life is ~6 hours.

  So after 6 hours there should still be 100mg of caffeine in your body.

Then why is it generally said that after 6 hours caffeines effect should wear off? Shouldn't it only be diminished since there is still 100mg of caffeine in your body?

Why do people consider caffeine ineffective after its half-life?

Assuming you take $\pu{200mg}$ of caffeine, it's half life is roughly 6 hours. So after 6 hours there should still be $\pu{100mg}$ of caffeine in your body.

Then why is it generally said that after six hours caffeine's effect should wear off? Shouldn't it only be diminished since there is still $\pu{100mg}$ of caffeine in your body?

1
source | link

If the half life of Caffeine is ~6 hours, why do people consider it ineffective after its half-life?

Assuming you take 200mg of caffeine; it's half life is ~6 hours.

So after 6 hours there should still be 100mg of caffeine in your body.

Then why is it generally said that after 6 hours caffeines effect should wear off? Shouldn't it only be diminished since there is still 100mg of caffeine in your body?