Feeling irritable too often? Here's what you should know

             Written by: Ehsan Siddiqui

29 September 2025

Ever feel like you're snapping over the smallest things? That sudden irritation might be your brain sending a signal. Here’s what your brain might be telling you. 

Photo Credit: Freepik

Hunger-induced low blood sugar levels can lead to irritation and difficulty focusing. You may feel tense and irritable due to physiological reactions, such as elevated cortisol and neuropeptide Y.

The Hangry Effect

Photo Credit: Freepik

Irritability is one of the early symptoms of chronic fatigue. Your brain cannot effectively regulate emotions when you don't get enough sleep, making minor frustrations feel like overwhelming crises.

Sleep Deprivation

Photo Credit: Freepik

Long-term stress can change brain circuits, including the medial prefrontal cortex and hippocampus, which help suppress anxiety and dread. This imbalance can lead to more frequent emotional outbursts.

Chronic Stress

Photo Credit: Freepik

Low levels of vital nutrients, such as B vitamins and magnesium, can impact neurotransmitter activity, resulting in mood swings and heightened irritability.

Nutritional Deficiencies

Photo Credit: Freepik

Constant stimulation and a lack of personal space may overload the brain, which can make people more irritable.

Overstimulation

Photo Credit: Freepik