An oxymoron? No, as often in life, timing is all that counts.
Coffee and stress
For many people, the morning coffee is essential. But, in the morning the natural production of cortisol is at its peak. Cortisol is also known as “stress hormone” and is especially released in the early morning hours. It supports waking up and our performance. Unfortunately, coffee in the morning boosts the cortisol release. But, this not increases your performance but your stress level and all its negative consequences. Furthermore, our sleeping process becomes disturbed.
You don’t want to give up your cup of coffee? Here are good news: from 09:30 a.m. on the cortisol level decreases. The perfect time for your coffee, cappuccino or latte macchiato.
Coffee and sleep need
During daytime, the level of the neurotransmitter adenosine rises in our brain. This process leads to the natural sleep need, increasing towards evening. When we lack adenosine, our sleep need as well as our sleeping quality are diminished. During sleep, our body breaks down adenosine.
Coffee inhibits adenosine production. So, to be able to fall asleep relaxed in the evening your espresso after lunch should be the last coffee of the day. Better bridge an eventual “early-afternoon-energy-slump” with inhaling fresh air at on open window and doing some stretching exercises.