TSH for longevity: understanding thyroid context
Existing knowledge article; not a hands-on product test.
TSH is one of the most common thyroid lab markers. For longevity, it can matter because thyroid function can connect with energy, weight, sleep, heart rate, cold sensitivity and metabolic context.
TSH alone is not always enough.
Short answer
You may find TSH in lab reports as:
- TSH
- thyroid-stimulating hormone
Depending on context, additional markers may include:
- fT3
- fT4
- TPO antibodies
- Tg antibodies
- ultrasound or professional review
What is TSH?
TSH is a signaling hormone that influences the thyroid. It is commonly used as a first screening marker.
What can influence TSH?
- time of day
- medication
- pregnancy
- acute illness
- thyroid conditions
- iodine status
- stress
- lab differences
How does LongLifeScan use TSH?
Consider the following points when interpreting this information:
- energy
- sleep
- resting heart rate
- weight/waist
- metabolic markers
- clinician/lab questions
LongLifeScan does not diagnose thyroid conditions.
What if TSH is missing?
Leave it empty. If you have symptoms, known thyroid context or unusual energy/weight changes, TSH may be useful to add.
Questions for clinician or lab
- Is TSH enough in my case?
- Should fT3 and fT4 be added?
- Are antibodies useful?
- Could medication or circumstances influence the value?