According to Fisher, breakups have been found to increase our cortisol (stress hormone) levels, which then suppress our immune system and weaken our coping mechanisms. People may experience insomnia, intrusive thoughts, depression, anger, and debilitating anxiety. What’s surprising is that they also score lower on IQ tests and perform worse on complex tasks that require reasoning or logic skills. Heck, people going through breakups have been found to use drugs and commit crimes at higher rates.
