How Stress Affects Your Brain by TED-Ed

Stress isn’t always a bad thing; it can be handy for a burst of extra energy and focus, like when you’re playing a competitive sport or have to speak in public. But when it’s continuous, it actually begins to change your brain. Madhumita Murgia shows how chronic stress can affect brain size, its structure, and how it functions, right down to the level of your genes. 
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_x000D_ Lesson by Madhumita Murgia, animation by Andrew Zimbelman.