Integrity is the quality of being honest and having strong moral principles; moral uprightness. It is generally a personal choice to uphold oneself to consistent moral and ethical standards.
This is because chocolate contains epicatechin, which is found out to help improve blood flow to the brain, thus improving memory function. Aside from that, most chocolate contain caffeine, which makes you alert, making you study more effectively and retain as much information as you can.
Take cauliflower. Kind of like walnuts, it visually reminds you of the brain. And sure enough, cauliflower is a brain-boosting superstar.. It's a great source of vitamin K, which is said to keep your mind sharp as you age and boost memory, as well as folate.