Carbohydrates and sugar: how does the glycemic index of foods affect decision-making speed and fatigue at the end of the working day?

The feeling of morning vigor is often replaced by overwhelming fatigue and drowsiness by as early as three o'clock in the afternoon. This is largely due to the lunch break and food choices. A lunch consisting of refined carbohydrates like white rice, mashed potatoes, or fast food has a high glycemic index and causes a sharp insulin spike.

Following such an insulin surge, blood glucose levels rapidly drop below normal. This condition is called reactive hypoglycemia, and it is precisely what causes a programmer to nod off in front of the monitor when they urgently need to write a function or deploy a release. Reaction speed drops, the number of syntax errors increases, and making the simplest decisions takes twice as long.

Understanding the concept of glycemic load helps stabilize this condition. Foods with a low glycemic index are digested gradually, maintaining an even emotional state and high concentration throughout the day. This eliminates the need to seek salvation in caffeine and chocolate.