8 Surprising Habits That Reveal Hidden Struggles with Intelligence, According to Psychology

I once overheard two coworkers debating whether street smarts were better than book smarts.
One guy was adamant that knowing random trivia made him a genius, while the other insisted that true intelligence is about how we adapt in everyday life.
Their conversation got me thinking: Intelligence isn’t just IQ scores and fancy degrees.
It also shows up in our small, daily habits—and some of those habits can actually reveal a surprising lack of mental agility.
Below, I’ll share eight habits that psychology points to as indicators of a lower level of intelligence.