Tired All the Time
Feeling tired all the time can be frustrating, confusing and easy to dismiss — especially when life is busy. But persistent fatigue is not always something to simply push through.
What This Test Looks At
Each marker in this panel is selected for its clinical relevance to your overall health picture.
- Full blood countoverall blood health
- Kidney functionfiltration and organ performance
- Key electrolytes and mineralsessential for nerve and muscle function
- Blood sugar controlcurrent and long-term glucose regulation
- Inflammationsystemic inflammation marker
- Thyroid function and thyroid antibodiesmetabolism, energy and autoimmune thyroid screening
- Iron statusiron stores and availability
- Transferrin saturationiron delivery to tissues
- Vitamin Dbone health, immunity and mood
- Folateessential for energy and red blood cell production
- B12energy production and neurological function
- Insulin and C-peptidemetabolic health and insulin response
- Cystatin-Csensitive kidney function marker
- Selected metabolic markersmore depth than a general wellness screen, particularly where energy and fatigue are the primary concern.
Book This Test If You're...
- Feeling persistently tired or run down.
- Dealing with low energy, poor concentration or brain fog.
- Struggling with recovery despite resting.
- Wondering whether iron, B12, folate, vitamin D or thyroid issues could be playing a role.
- Feeling "not quite right" but unsure where to start.
- Looking for a more in-depth alternative to a basic health screen.
- This test may be especially helpful if you are waking feeling unrefreshed, energy dips are affecting work, parenting or training, you want to investigate common causes of fatigue before simply reaching for supplements, or you are considering lifestyle or nutrition changes and want proper baseline data first.
How It Works
Choose Your Test
Choose the right test for you and complete your order.
At-Home Blood Collection
You phone to confirm your appointment time and location. A qualified phlebotomist will come to take your blood sample.
Laboratory Analysis
Your sample arrives at our UKAS and NHS Approved laboratory partner, with analysis done within 24 hours.
GP Led Clinical Review
Your results are reviewed by our qualified doctor, who is able to interpret and recommend next steps based on findings.
Your Results
Our doctor will talk through and share your results with you, recommending clinical next steps. Most blood testing companies only share results and cannot fully interpret them.
Venous vs Finger-Prick Blood Tests
Venous blood tests provide more reliable, better quality blood samples to analyse than finger-prick tests do. They are the gold standard for blood testing which is why we only offer them here at Cocoon.
Why Cocoon At-Home Is Different
A premium, thoughtful experience from start to finish.
Professional Venous Collection
Clinical-grade blood draw by a qualified phlebotomist, not a finger-prick blood draw.
Expert Laboratory Analysis
Our UKAS accredited and NHS approved will analyse your blood sample.
GP Reviewed Results
Every result is reviewed and interpreted by a qualified clinician, with the ability to reommend next steps based on findings.
Comprehensive Biomarkers
A specifically selected panel of biomarkers designed for meaningful insight.
Why Fatigue Deserves Proper Investigation
Low energy can have many different causes. Sometimes lifestyle. Sometimes deficiencies, metabolic issues or thyroid imbalance. Often combination. Testing helps move from vague frustration to something more actionable.
Many possible causes
Low energy can stem from lifestyle, deficiencies, metabolic issues or thyroid imbalance — often a combination.
Move from frustration to action
Testing helps move from vague frustration to something more actionable.
Before self-prescribing
Especially important before self-prescribing supplements, because adding in nutrients you do not actually need is not always helpful and can sometimes be counterproductive.