Multilingual individuals have a "physical cheat code" that forces their brains to be rational: thinking in a foreign language. Your native language ties down your emotional brain (limbic system), but a foreign language is learned through the logical brain (prefrontal cortex), which comes with a built-in "emotional shield" function. Next time you find yourself making a tough decision and feeling overwhelmed, try switching to your second language to review the situation; you'll find that you can make better judgments.