We all love coffee because of its super refreshing power, we are fondly attracted to it.
But drinking a coffee in the morning to wake up and give yourself a caffeine boost is all a myth, suggests research gathered by Ph.D candidate Steven Miller at the Uniformed Services University of the Health Sciences in Bethesda.
And ordering that cup of coffee first thing could even lead to an increased tolerance of caffeine, dulling the effects long term.
Why you shouldn't drink coffee at 8am or 9am
The reason for this is all about the hormones in the body and their 24-hour cycle, known as the circadian clock.
The circadian clock differs in every person but is generally regulated by sunlight with hormones released throughout the day.
Cortisol is a stress-related hormone usually that makes us feel alert and awake – and is released by the body around 8am or 9am in the morning, 12 noon and 1pm and 5.30pm and 6.30pm.
If a person has a coffee around that time as well, the effectiveness of the stimulation is diminished.
Not only that but caffeine is thought to increase cortisol production, disturbing the circadian rhythm.
When is the best time to drink coffee then?
Because of this, the recommended optimal time to drink coffee is between 9.30am and 11.30am, and between 1.30pm and 5pm.
These times take advantage of the times that your cortisol levels dip and do not interfere with your circadian clock.
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