591. Expectant fathers can sometimes experience a sympathetic pregnancy where they have symptoms like back ache, weight gain, strange food cravings and nausea. This has also been found to happen in some species of monkey.
592. Suicidal thinking or behaviour is the most common reason for people to be admitted into a mental institution.
593. Women who live in warmer climates have more body image concerns than those who live in colder climates.
594. People with generally high levels of anxiety are more likely to remember pictures of threatening faces than calmer people.
595. Unhappy people watch more TV.