101. People will make every effort, sometimes even dangerous, to obey those in authority. In his famous obedience experiments, psychologist Stanley Milgram stated that people would be willing to deliver a potentially lethal electric shock to another person when commissioned by experimenters.

102. Volunteers are much more satisfied with their lives than people who do not volunteer.

103. Expecting fathers can sometimes experience a sympathetic pregnancy with symptoms such as back pain, weight gain, strange food cravings, and nausea. It has been found that this also happens in some species of monkeys.

104. Our favorite subject is ourselves. Our brain's reward centers light up brighter when we talk about ourselves than when we talk about other people, according to a study done at Harvard.

105. The way a person treats restaurant staff reveals a lot about his character.

106. Our memories are not like movie frames that we have access to multiple times. Instead, they are neural pathways that re-ignite each time we recall an event, which means they can change.

107. Many of us suffer from "Phantom Vibration Syndrome"; the feeling that your phone is vibrating when it really isn't.

108. Doing things that scare you will make you happier.

109. The happier you are, the less sleep you need to function in your daily life. Sadness increases the urge to sleep.

110. Fraudsters tend to think that everyone is cheating. Liars tend to think that everyone is lying.