Graphs & DesignsReferenced from our articles NAHIS provides free to download and print diagrams and graphs pertaining to thyroid physiology and testing.*Patients feel free to print and show your doctor* Thyroid Physiology with Stress Download Here PDF Thyroid Physiology without Stress Download Here PDF Conditions Where TSH is Unreliable Download Here PDF Why is TSH Unreliable with Aging? Download Here PDF Diagnosis of Low Tissue Level of Thyroid Hormone with Serum Levels with Physiologic Stress Download Here PDF