The Best Time to Drink Coffee
About 90 minutes after you wake up. Drinking coffee the second you wake up is partly wasted — and it can set you up for an earlier crash. The science says wait about 90 minutes. Here is why, and your exact time.
Your time
8:30 AM
Wait about 90 minutes. Cortisol is still high right after you wake — coffee now means steadier energy and no early crash.
The science
When you wake, your body releases a surge of cortisol — its natural alertness signal. For the first hour or so after waking, that cortisol is already keeping you alert, so caffeine on top of it does less and your body adapts to needing more.
Let that initial cortisol peak fall first — roughly 90 minutes after waking — and your coffee does real work, giving you steadier energy without the mid-morning dip.
Frequently asked questions
Why not drink coffee right when I wake up?
Your cortisol is already high in the first hour after waking, so caffeine then is largely redundant and can blunt its own effect over time (you build tolerance). Waiting ~90 minutes lets caffeine work when cortisol naturally dips.
When should I stop drinking coffee?
Caffeine has a half-life of about 6 hours, so your last coffee should be roughly 8–9 hours before bed to protect deep sleep. Use the full tool to see your exact cutoff.
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