Most languages have a bias against left-handed people…

Most languages have a bias against left-handed people. Left is derived from ‘lyft’, meaning weak. In Dutch, ‘Link’ means cunning. In German, ‘link’ means questionable. In Mandarin, it’s zuô, meaning improper, and in Turkish the word for left is sol, which can mean both ‘die’ and ‘ill’.

We hear songs that get stuck in our head while…

We hear songs that get stuck in our head while performing tasks that require a “low cognitive load”, such as showering or getting dressed. Our brain uses these songs as a “screen saver” to keep us entertained while our brain is essentially idle.