National Post

DEJA BREW ALL OVER AGAIN

When are the best times of the day to drink coffee? Sadaf Ahsan

- Weekend Post

For some of us, it can be difficult to get out of bed in the morning. The toll it takes just to mentally and emotionall­y wake up and prepare yourself for the day – let alone actually leaving the house and going to work – can be overwhelmi­ng. And so, until human forklifts receive the crowd- funding they so desperatel­y deserve, we’ll have to rely on that overthe- counter miracle drug of miracle drugs: caffeine.

A morning coffee is basically like swallowing strength. And while it may seem miraculous, there is some science behind why your morning routine goes from zero to 60 with one sip. You may not want to get clinical about your coffee, but by looking into how caffeine affects us, we can learn the time of day when our bodies and minds stand the best chance of profiting off of some java.

As it turns out, our reaction to caffeine has a lot to do with cortisol, a hormone our body releases in response to stress and what gives us that feeling of being alert. So if you have a cup of coffee when your cortisol levels are at their highest, your body will begin to recognize coffee as a replacemen­t for cortisol. That’s not so great because then your body’s tolerance for caffeine will rise and, over time, it will no longer have its magical energy- boosting power. This is why some times when you go for even the strongest black, it just doesn’t seem to help.

So the best times to consume coffee are after your body’s cortisol levels die down. Which means, surprising­ly enough, you should not be opting for coffee first thing in the morning even if every nerve in your body and fibre of your being says that’s what it wants and needs.

Cortisol production follows a circadian rhythm (a natural 24- hour cycle) regardless of whether you’re an extra-early riser or super-late sleeper, which is great news, because that means you can keep your coffee breaks consistent and get your hit when you need it. Our bodies are all following the same pattern, whether that’s shifted earlier or later. On average, however, peak cortisol times, according to a 2009 study in the Journal of Clinical Endocrinol­ogy and Metabolism, happen between 8 and 9 a.m., 12 and 1 p. m., and 5: 30 and 6:30 p.m. Which means you should be making a coffee dash between 9:30 and 11:30 a.m., and 1:30 and 5 p.m.

The objective is to use it when your body needs it just as your natural energy levels begin to drop.

And there is a cut- off point: drinking coffee in the evening is best avoided, because caffeine can disrupt your sleep up to six hours after consuming it, meaning you could end up losing an hour or more of shut-eye. That’s when, if you absolutely have to, a cup of tea is your best bet to ease into the night.

No matter what your daily routine, the key thing to remember is: you don’t actually need coffee the minute you wake up. The smell of coffee brewing on the other hand ...

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