Factslaps are back, dear bitches:

• A study using MRI scans showed that the brains of people who exercise moderately look 10 years younger than those who don’t.
• Installed in 1410, the world’s oldest astronomical clock is still in operation is in Prague.
• The world’s most expensive perfume is Clive Christian No 1 Passant Guardant. It costs $143,000 for 30ml and comes in a flask studded with 2,000 diamonds.
• A recent  study found that 80% of mass shooters showed no interest in violent video games.
• Scientists at the University of Alberta spent seven years working out that human urine contains 3,079 different chemical compounds.
• Studies have suggested that losses are, psychologically, twice as powerful as gains. So winning $100 feels as good to us as losing $50 feels bad.
• Research has shown that dogs actually like the silly, high-pitched voice their owners use to talk to them.
• Ben & Jerry learned how to make ice cream by taking a $5 correspondence course offered by Penn State, because one of them couldn’t get into medical school and the other couldn’t sell enough pottery.