Drink a coffee and go back to sleep; sounds counterintuitive, but it may be just the answer to all your stimulation needs.
Here’s how it works.
Step 1: Drink coffee, quickly. Straight and black is the best option.
Step 2: Immediately go to bed for 20 minutes. No more.
Step 3: Wake up and feel like a Superwoman (or man).
Prepare to be more alert and ready to take on the day, moreso than if you'd had a coffee without the nap.
The science behind it.
It's still pretty much theory based, in that there hasn't been enough human studies to be able to confirm if it works for everyone. But from the smaller studies involving the brain, caffeine and other chemicals, scientists are linking things together.
In a nutshell, it takes around 20 minutes for the body to digest, absorb and send the caffeine you ingested up into your brain. Your brain has receptors for caffeine and the same receptors also notice and link to adenosine. Your brain releases adenosine from brain activity.
Once these levels get high, adenosine makes you feel tired. Your naturally high adenosine levels after a long tough day or lack of sleep, compete with the caffeine to be noticed by these receptors therefore, if a receptor is linked to adenosine, it can't link up to caffeine.
When you're crazy tired, caffeine isn't going to do a great deal in terms of perking you up. But if you're not that tired, and your adenosine levels are fairly low, you're going to feel caffeine's effects because the receptors are free to link up to it.
Your body naturally decreases its adenosine levels when you sleep. You don't need a deep sleep to help do this - in fact its best to keep it to 15-20 minutes, otherwise you may feel even groggier as you go into a deeper sleep rhythm. So this coffee nap gets you to drink the coffee, then sleep or rest while it gets absorbed. You naturally lower your adenosine levels, allowing coffee to give you more of a boost!
Add this one to your morning routine!by Larina Robinson - The Body Dietetics