Does TSH Rise During Your Period? Cycle Effects Explained
TSH rises about 10 to 15% in the late luteal phase versus follicular phase. See normal ranges, functional optimal levels, and what your result means.
TSH (Lab Test)
10 source-based articles maintained by the HealthRX.com Editorial Team.
10articles
3topic areas covered
Jan 28, 2025latest review
TSH (Lab Test) library
Showing 10 of 10 clinical reviews.
Drugs That Distort Your TSH Test: A Complete Clinical Guide
Dozens of common medications can falsely raise or lower TSH readings. Learn which drugs interfere with thyroid-stimulating hormone testing and how to interpret results accurately.
How Your TSH Level Changes Your Treatment Plan
Your TSH number directly shapes medication type, dose, and monitoring frequency. Learn how clinicians use TSH to guide levothyroxine dosing, hyperthyroidism management, and thyroid treatment decisions.
TSH Interpretation by Decade of Life: Normal Ranges, Optimal Targets, and What Your Number Actually Means
A decade-by-decade guide to TSH interpretation covering normal ranges, optimal targets for different age groups, and how thyroid-stimulating hormone values shift across the lifespan. prepared by the HealthRX.com Editorial Team.
TSH Lab Results: Normal Range vs. Functional Optimal Range
Learn the difference between standard-reference TSH ranges and functional optimal TSH levels. Evidence-based guide covering what TSH means, how ranges are set, and when a borderline result deserves a closer look.
TSH Longevity-Medicine Target Ranges: What Optimal Really Means
Standard TSH reference ranges flag overt thyroid disease, not optimal function. This article explains where the narrower longevity-medicine target ranges come from, what the underlying evidence actually shows, and where the evidence stops short of proving that treating toward a tighter number improves outcomes.
TSH, Training, and Exercise: What Every Athlete and Patient Needs to Know
How aerobic training, resistance exercise, overtraining, and body-composition changes affect TSH levels, what the optimal TSH range looks like for active adults, and when a shifting TSH reading warrants clinical action.
TSH: How to Interpret Your Result
A guide to reading your TSH lab result, understanding what high and low values mean, and knowing when to act.
TSH: What This Test Actually Measures
TSH (thyroid-stimulating hormone) is the first-line screening test for thyroid dysfunction. Learn what TSH measures, normal ranges, and what high or low results mean for your health.
TSH: When to Order This Test, What Results Mean, and How to Act on Them
A guide to TSH testing: who needs it, what normal and abnormal results mean, when to retest, and how thyroid-stimulating hormone guides treatment decisions for hypothyroidism and hyperthyroidism.