#1. Receiving “good morning” and “goodnight” text messages stimulates the part of the brain that manages happiness.
#2. Doing things that scare you will make you a braver, happier person.
#3. A friendship started between 16 and 28 years of age is more likely to last a long time.
#4. On average, women prefer men with deep, husky voices because they seem confident and less aggressive.
#5. The sloppier someone’s handwriting is the smarter they are, because they think faster.
#6. The way a person treats restaurant staff reveals a lot about their true character.
#7. Listening to high-frequency music makes you feel calm, relaxed, and happy.
#8. The happier someone is, the less sleep they need.
#9. Men aren’t funnier than women; they just make more jokes and don’t care whether people laugh or not.
#10. Women have twice as many pain receptors as man, but have a far higher tolerance of pain.
#11. To alleviate emotional pain and stress, hold the hand of a loved one.
#12. People who marry their best friend are much more likely to stay together and 70% less likely to divorce.
#13. If your brain’s too full of thoughts to sleep, get up and write them down. It sets your mind at ease.
#14. Intelligent people tend to have less friends than the average person, because they’re more selective about friendships.
#15. The average amount of time a woman can keep a secret for is 47 hours and 15 minutes.
#16. Women with mostly male friends are happier on average.
#17. Being lonely is just as bad for your health as smoking 15 cigarettes a day.
#18. Travel boost brain health and decreases the chance of heart attacks and depression.
#19. And people look more attractive when they’re talking about something they’re passionate about.
