" 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."
"Meaningful growth requires challenge and stress."
Here is a quick 4 minutes video, explaining what makes muscles grow.
How stress affects your body
- by Sharon Horesh Bergquist
Here is another fantastic video from TED-Ed.
It explains how this "Hard wired physical response which travels throughtout your entire body" affects you. The impact on your body and your health. I knew it was powerfull but this demonstrates the full extent of its range.