which means if you have a cup of Joe with 100mg of caffeine in it, you’ll have 50g remaining in your system after five hours, and then 25g remaining after 10 hours. The half-life – or how long it ...

If you find yourself struggling to sleep at night, you might want to carefully consider what you’ve been drinking earlier in the day. Whether you’re a coffee fanatic or a serial tea guzzler ...

What is going on here? What does caffeine do to your body? And how long does it last? Caffeine and its effects are actually fairly complicated and scientists still aren’t sure exactly how it works.

which means if you have a cup of Joe with 100mg of caffeine in it, you’ll have 50g remaining in your system after five hours, and then 25g remaining after 10 hours. The half-life – or how long it ...

The half-life – or how long it takes for your body to eliminate half of the original dose – really depends on how sensitive you are to caffeine, as well as other factors like whether you smoke ...