Green tea may protect your brain in old age, lowering your risk of Alzheimer’s and Parkinson’s
The two most common “neurodegenerative disorders”.
Caffeine is to block an inhibitory neurotransmitter called Adenosine. This way, it actually increases the firing of neurons and the concentration of neurotransmitters like dopamine and norepinephrine.
It also has the amino acid L-theanine, which is able to cross the blood-brain barrier. L-theanine increases the activity of the inhibitory neurotransmitter GABA, which has anti-anxiety effects. It also increases dopamine and the production of alpha waves in the brain.
“The amino acid L-theanine, which can work synergistically with caffeine to improve brain function.”