02/17/2026
When you feel unusually short-tempered, reactive, or easily overwhelmed, it's rarely "just stress." Irritability is often the nervous system's way of saying it's under too much load.
Common body-based contributors include:
- Blood sugar swings
- Poor sleep or circadian disruption
- Hormonal shifts (especially estrogen and progesterone)
- Elevated cortisol or chronic stress
- Inflammation or nutrient depletion
When the body is struggling to regulate stress and energy, emotional tolerance drops. Small things feel big, not because you're overreacting, but because your system has less buffer.