Know your nootropics

CAFFEINE

affeine is the most widely used psychoactive substance in the world. Its much-loved energising benefits are thanks to caffeine molecules blocking adenosine receptors in our brain. Adenosine is a neurotransmitter (or brain chemical) that builds up throughout the day, making us feel more and more sleepy, and letting us know it’s time to slow down and rest. By temporarily blocking this neurotransmitter with a cup of tea or coffee we feel more alert and awake, and there