451. Shyness is an evolutionary adaptation: whereas the braver animals may find more mates and eat more food, the shyer individuals, hiding on the sidelines, might avoid attack.

452. Lying requires a lot of mental effort. A person who is lying has to keep in mind at the same time the lie – that it to say, and the truth – in order to hide it. As a result, he uses simple sentences and finds it more difficult to cope with mental tasks.

453. The feeling of rigidity and hardness makes people inflexible. People sitting on hard chairs were more uncompromising in the negotiations. Feeling a rough surface causes in people a sense of the complexity of human relations, and cold is tightly connected with the feeling of loneliness.

454. Romantic love is biochemically indistinguishable from having a severe obsessive-compulsive disorder.

455. Mind's Intelligence may be of different types, and each type of intelligence is an individual trait, that has very little to do with the others. Intelligence could be musical, kinesthetic, emotional, mathematical, reasoning oriented or even athletic proved by psychology.