How long does it take for caffeine to leave your system? Read on to find out.

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, the reality is that when you sip on these hot drinks, your body is getting a hearty dose of caffeine – and this caffeine can end up lingering in your system for some time.

The effects of your morning brew can occur anywhere between 15-45 minutes after your first sip, when caffeine levels peak in your blood, according to Medical News Today. This is when you feel spritely and alert.

The caffeine is then metabolised by the liver – and as it breaks down, you feel the effects less. Cue the urge to grab another hot bevvie from the kitchen.

How long does caffeine stay in your system?

The average cup of coffee contains about 100mg of caffeine, while a cup of breakfast tea typically contains about 50mg of the stuff.

Caffeine has an average half-life of about five hours, 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 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, you’re pregnant, or are taking certain medication, etc. We know

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