Time to put the kettle on
Apart from a caffeine hit to help you feel more alert, here’s another reason to put the kettle on and enjoy a cup of green tea. L-theanine, an amino acid found in green tea, has been shown to stimulate alpha wave activity in your brain, evoking a similar response to meditation, which helps you feel more relaxed. It also lights up the pleasure centre of your brain, by increasing dopamine levels. Now that’s a calming brew.