My sister loves to watch life hacks videos on youtube. She even made a list on food what to eat when studying/reviewing!

Eggs-Brain food

Grapes-Brain food

Apples-Keeps you awake (Better than coffee)

Gum-Enhances Memory (When being chewed, while reading)

Chocolate-Brain food

Mint- Not really sure~

There's mre, I just forgot them, and My sis doesn't want to tell me the rest

TT ^ TT