14/10/2026
Energy is not controlled by one hormone or one organ. That is why persistent fatigue often needs a wider lens.
This graphic is not a diagnostic checklist and it does not mean every area needs testing. It is simply a reminder that sleep, hormones, thyroid function, nutrient status, metabolic health, stress and wider medical factors can overlap.
The best investigation is targeted: start with your symptoms and history, then use appropriate assessment or testing to answer the questions that arise from them.
See One of Our Hormone Coaches
If you’d like personalised support to improve your energy through nutrition, lifestyle and hormone health, arrange an appointment with one of our experienced Hormone Coaches. Together you’ll build a practical plan tailored to your needs.