Sleep is necessary for good health.
Eating too much junk can be bad for you.
You could make a list of the every day truths and not-so-surprising facts confirmed by scientists in clinical trials.
When it comes to racism and sexism though, finally 'proving' these experiences are real, to people who have never experienced them, is satisfying but also maddening.
This was the reaction women across the internet had to an intrepid experiment by soft drink company Schweppes and ad agency Ogilvy.
Schweppes recently paid researchers to invent a 'smart' dress that would use technology prove how often women got groped in clubs.
In four hours, the women are touched a combined 157 times.
Men brought in to review the experiment after the party, seem shocked at the battered image of the dress.
"People are more likely to believe inanimate objects than women" fixed the headline for you," journalist Yael Grauer tweeted.
"Lol that men won’t believe women and need ~technology~ in the form of a ~smart dress~ to convince them women get groped all the time at clubs," another woman tweeted.
"You shouldn't need to build a dress to get men to believe women get groped all the time, @ogilvy @ogilvybrasil @schweppes. Men should just believe us when we tell them that. Brazilian men, and ALL men. Listen to women. Believe women," another user tweeted.
Empathy starts with knowledge. Let's hope we can start listening to each other, instead of discounting the lived experiences of women that create the need for expensive gimmicks.