Dave Nicholson
Member
Strong emotions are a well known cause of irrational thinking which is why cognitive distortions (which often result in frequent misunderstandings and incorrect interpretations) are very common in people diagnosed with mental health disorders.
If you watch debates, you'll often notice that people who are emotionally mature (they remain calm and in good control of their emotions regardless of what happens) tend to be more intelligent, think logically, and present the best arguments. People who are emotionally immature (highly sensitive, frequently offended, easily triggered, prone to tantrums/meltdowns, who may need to retreat to safe spaces when people disagree with them or when they don't get what they want) tend to present the most irrational arguments based on their emotions with little or no intellectual understanding.
To sum it up, being calmer/less affected by distressing emotions allows you to think more clearly and intellectually. I don't have a link but I remember reading that some children with a below average IQ who suffered from an emotional disturbance saw their IQ increase to well above average (I think their IQ went from 80 to 130) after overcoming their emotional problems.
This makes perfect sense. Good post.