The Best Time of Day to Drink Coffee

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If you are a coffee drinker and think that you can’t start your day without this amazing ingredient, join us in this article to find out when is the best time to drink coffee.

The benefits of coffee for human health

As most people know, there is a lot of scientific evidence that coffee is very good for human health and longer life. According to a meta-analysis, 127 studies have shown that drinking coffee can:

  • Reduce the risk of cancer by 20%;
  • Reduce the risk of heart disease by up to 5%;
  • Reduce the risk of type 2 diabetes by 30 percent;
  • Reduce the risk of Parkinson’s disease by 30%.

The reason for this effect is that coffee introduces natural antioxidants into the body, Restores DNA, Calms stress-induced inflammation, and increases the efficiency of insulin-regulating enzymes and glucose. So it’s no surprise that, on average, people who drink coffee live longer than people who refrain from doing so.

Determine the best time to consume coffee according to the human body’s circadian cycle

Drinking coffee at different times of the day can increase or decrease its benefits; Also, according to a study in chronopharmacology (a branch of neuroscience that studies how drugs affect the body’s natural biological cycles), it can be dangerous to health.

There is a part of the human brain called the suprachiasmatic nucleus (SCN) that controls the level of cortisol (the stress hormone) in the body. An increase in this hormone means an increase in the level of human consciousness, and its absence makes us feel drowsy. Caffeine has a similar effect.

According to neuroscientist Mr. Steven L. Miller, a postdoctoral researcher at Geisel Dartmouth University School of Medicine, said that drinking coffee when your SCN has released enough cortisol limits its positive effects because you are automatically stimulated at that time.

In other words, combining coffee with cortisol means more stress and is therefore detrimental to health.

Conversely, drinking coffee when your cortisol levels are low will boost your mood and boost your energy levels so you can do more without getting nervous. For a normal person (a person who wakes up around 6:30 in the morning), the peak amount of cortisol in the body is at the following hours:

  • 8 to 9 a.m.;
  • noon to 1 pm;
  • 5:30 to 6:30 p.m.

For early birds (like Apple CEO Tim Cook, who rises at 3:45 a.m.), you adjust those numbers back about three hours. For night owls (like Reddit co-founder Alexis Ohanian, who rises at 10 a.m.), you adjust those numbers forward by about three hours.

According to the body’s circadian cycle, when is the best time to drink coffee?

Cortisol levels in the body begin to rise from the moment you wake up; So if you make the most of your coffee while eating breakfast or on your way to work, you won’t get the most out of it and may create unreasonable stress for yourself. Similarly, if you set your coffee time for lunch, the effect of coffee will be limited, because your cortisol levels are high at this time.

Although cortisol levels decrease in the afternoon, drinking coffee at this time is not a good idea. According to an article published on the WebMD website, caffeine stays in your body for up to 12 hours and can cause insomnia; Insomnia is a very important cause of stress and a serious destructive factor for health. Drinking coffee at night has the same effect (although decaffeinated coffee is probably okay).


That said, the best time to drink caffeinated coffee is for an average person (that is, someone who neither wakes up too early nor sleeps late) between 9:30 a.m. and 11:30 p.m. Also, to get the most out of your coffee, you should drink between 4 and 6 cups of coffee (about 227 grams) during the period we mentioned.

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