🧠 Day 5: Stress and the Brain—Why You Can’t Think Straight

Can’t focus? Can’t sleep? Can’t remember where you put your phone? Blame your stress-soaked brain.

Stress doesn’t just affect your body—it rewires your brain. Chronic stress elevates cortisol, which impairs memory, focus, and emotional regulation. It shrinks the prefrontal cortex (decision-making center) while overactivating the amygdala (fear center), making you more reactive and less rational (McEwen, 2007). That’s why stressful seasons feel foggy, confusing, or like you’re constantly “off.” Understanding this mental fog is key—your brain is protecting you, but at a cost.

Action Step

Reflect: What tasks or situations have become harder when you’re under stress? Write down 2–3 changes you’ve noticed in focus, memory, or sleep.