391. Listening to music with high sound quality evokes feelings of calmness, relaxation and happiness

392. From a biochemical point of view, the state of being romantically in love is indistinguishable from obsessive-compulsive disorder.

393. Travel stimulates the brain and reduces the risk of heart attack and depression.

394. The heart has nothing to do with the feeling of love - it's just a chemical reaction in our brain.

395. Dreams are 70% secret thoughts that carry more weight and meaning than our conscious thoughts.

396. The combination of red and blue is hard to perceive by sight.

397. There is a gene that can cause an almost constant negative attitude to everything.

398. There are over 400 different types of phobias recognized by psychologists.

399. The average time a woman can keep a secret is 47 hours and 15 minutes.

400. The ability to instantly respond with a mockery to a stupid question is a sign of a healthy brain.