This is sheer, abject terror. The worst kind of fear.

The unknown. It is when we are at our most vulnerable...

I recognise fear and my amygdala is activated.

It has alerted my nervous system, which has set my body’s fear response into motion.

Cortisol and adrenaline are released. Blood pressure and heart rate increase.

I am now at the mercy of my own body, unless I control it.