The truth is that scientists aren't sure why humans tell lies, but they do know that lying is common and that it is likely linked to several psychological factors.

For example, for pizza toppings my husband and eldest will always go pepperoni, whilst my youngest would always pick cheese!

The game is very playful, if players are taking too long to come up with an answer all the other players have to moo at them! She was the 2016 winner of the Evert Clark/Seth Payne Award, an annual prize for young science journalists, as well as the winner of the 2017 Science Communication Award for the American Institute of Physics.

Aside from a genetic predisposition for certain addictive habits, some people might engage in risky behavior, like using drugs or alcohol, because they're not really thinking through the consequences of these actions, according to Cindy Jardine, a professor in the School of Public Health at the University of Alberta, in Canada. Scientists think the answer is pretty simple: People think plastic surgery and other cosmetic procedures will make them look better and therefore, feel better.Whether you're a leftie or a righty, the fact that you have a dominant hand at all is a bit weird, according to scientists.