Dehydration
Insufficient body water, causing thirst, fatigue and reduced concentration.
Possible causes
- • Inadequate fluid intake
- • Heat and sweating
- • Illness with vomiting or diarrhoea
Associated systems
Optimisation advice
- • Sip water consistently through the day
- • Watch urine colour as a hydration guide
- • Increase intake during exercise or heat
Medical red flags
- • Confusion, rapid heartbeat, or inability to keep fluids down
Related anatomy
Medical disclaimer
This page is for general education and does not replace personalised medical advice. If you have concerning symptoms, or before starting a new supplement, medication or exercise programme, speak with a qualified healthcare professional.