Besides being delicious, grapes have the ability to protect your mental health. In a new study, researchers found that consuming two cups of grapes a day can help fend off Alzheimer’s disease. The effect is likely due to the known antioxidant and anti-inflammatory properties of polyphenols, which are believed to reduce oxidative stress in the brain while also promoting blood flow and maintaining the levels of a chemical that boosts memory. Has there ever been a tastier way to protect your brain?