Here’s how to achieve that: Chase your cup of coffee with a cup of green or white tea. Unlike black tea, green and white teas are less processed – and go through less oxidation. As a result, they contain higher levels of the amino acid L-theanine. And according to Oxford University, L‑theanine increases alpha brain waves — which are linked with feeling relaxed yet alert.
So why drink coffee first? Because in a study, people who had a dose of caffeine AND L‑theanine felt less tired — and had increased attention and memory.