Conditions we help with
These conditions overlap more than they differ. We look at the whole picture, and work alongside your GP and specialists, never instead of them.
Brain fatigue
Brain fatigue is a drop in mental stamina: the brain tires quickly and takes longer to recover. It often travels with the other conditions on this page.
Slow, effortful thinking and a brain that runs out of fuel by mid-afternoon. Often linked to sleep, blood sugar, inflammation, hormones or the gut–brain axis.
Common signs
Mental and physical fatigue that lingers after a head injury, sometimes months later. The brain's energy demands rise while its stamina falls.
Common signs
Long periods of pressure can leave the stress response stuck on, disrupting sleep, blood sugar and hormones until rest no longer restores energy.
Common signs
Chronic fatigue
When fatigue lasts for months, limits daily life and doesn't improve with rest, it needs a careful, whole-person approach.
Myalgic encephalomyelitis / chronic fatigue syndrome is a long-term condition where activity triggers a worsening of symptoms, often a day or two later. Diagnosis is made by your GP or a specialist.
Common signs
In line with NICE guidance, we never use graded exercise therapy. Activity advice is built around energy management and pacing.
Ongoing symptoms after COVID-19 or another infection. Fatigue is the most common, often with brain fog, breathlessness and muscle aches.
Common signs
Thyroid, adrenal and sex-hormone changes, including perimenopause and menopause, can drain energy and focus even when standard results look "normal".
Common signs
Fibromyalgia
Fibromyalgia causes widespread pain and fatigue, with a nervous system that amplifies pain signals. It often overlaps with ME/CFS, poor sleep and gut problems.
Long-term widespread pain with fatigue, poor sleep and brain fog ("fibro fog"). Diagnosed by your GP or a rheumatologist; there is no single test.
Common signs
Fatigue is one of the most disabling symptoms of conditions such as MS and Parkinson's. We support energy, sleep and brain health alongside your neurology team.
Common signs
New weakness, numbness or changes in vision should be checked by your GP promptly.
How common is it?
people in the UK are estimated to have ME/CFS, 62% more than previously thought1
people in the UK live with fibromyalgia2
people in the UK reported long COVID symptoms in 20233
Sources: 1. Samms & Ponting, BMC Public Health (2025), DecodeME. 2. PACFiND study, University of Aberdeen. 3. Office for National Statistics, March 2023.
The Brain Performance Analysis takes about 12 minutes online and scores eight areas, from mental stamina to sleep. Your £12 is refunded in full when you book a Discovery Consultation.
A consultation starts with your full story before any testing is suggested.
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