It’s April of 2026 and Day 25 of the A to Z challenge. This year, being the tenth, I am doing the theme of “Architecture of Mind“. This years theme explores the mind map of hidden biases. In this journey, we will explore how biases shape our thinking and sometimes lead us away from reality.
Day 25 – Yerkes–Dodson Law
When we feel a little pressure, we tend to perform better, but too much pressure can make us anxious and reduce our performance. This is explained by the Yerkes–Dodson Law. It shows how performance increases with stress up to a certain point, and then begins to decline when the pressure becomes too high. A moderate level of alertness helps us stay focused, while excessive stress overwhelms the mind. We begin to struggle because the pressure is too much. This idea appears in everyday situations involving work, exams, and deadlines. For example, a small amount of nervousness before a test can help us stay sharp, but too much anxiety can make us forget what we know.
A moderate
Keeps us in control.
A rhythm seen,
Keeping us keen.
We are not machines
of volts and bolts,
we are machines
Of mortal faults.
In the architecture of mind, efficiency requires a “sweet spot” of stress.









