Low Energy

'I'm tired all the time' is one of the most common complaints in modern medicine, and one of the most dismissed. Blood work comes back 'normal' and the conversation ends. But chronic low energy is almost always telling you something real about your mitochondria, your sleep architecture, your thyroid, your nutrient status, or your stress load. This chapter decodes what your body is actually saying.

6 takeaways from this chapter.

• Why 'fatigue' is a symptom with at least six different root causes — and how to work out which is yours
• The cellular biology of energy production and how mitochondrial dysfunction presents clinically
• Nutrient deficiencies that masquerade as tiredness (iron, B12, vitamin D, magnesium) and how to test properly
• The hormonal contributors most GPs don't investigate — thyroid, cortisol, testosterone, DHEA
• Why chronic inflammation is an energy thief and how to spot it
• Where mitochondrial and cellular peptides fit into the recovery stack

Anyone who's been told their blood work is 'fine' but knows something isn't right. People whose energy has steadily declined year on year without explanation. Parents, shift workers, and high-output professionals who suspect burnout but want to rule out the physical before they accept the psychological.

Part of The Body Blueprint — 41 chapters across every system that matters. £6 per chapter, or £29 for the full bundle (save £217).