Hormone Health Hub: Expert Insights on Testing, Balance & Better Living — advanced wellness diagnostics

While working or exercising, do you sweat for an extended period of time? Are you constantly exposed to a hot or humid environment? Do you take pre or post workout supplements and/or a multivitamin to replenish key nutrients lost during exercise? Are you aware that excessive perspiration has been linked to iodine deficiency? How Iodine Powers Thyroid Function Thyroid hormones, thyroxine (T4) and triiodothyronine (T3), are manufactured in the thyroid gland using iodine. Iodine consumed in the diet circulates in the bloodstream and is selectively taken up by the thyroid gland where, through a series of complex biochemical reactions, it...

At-home hormone testing using saliva, dried blood spot and dried urine collection is not only more convenient than clinic-based blood draws — it is also safer, more accurate for certain hormones, and essential for capturing time-sensitive samples like waking cortisol or first-morning melatonin. This article explains how each collection method works, why dried samples carry minimal infection risk, and how ZRT Laboratory’s CLIA-certified processes ensure reliable results.

Discover how certain foods rich in serotonin and dopamine — including bananas, walnuts, pineapples, avocados, and nut butters — can interfere with urinary neurotransmitter testing and lead to false-positive results. Learn why proper test preparation matters, how neurotransmitter urine analysis is interpreted, and how combined neurotransmitter and cortisol testing can provide deeper insight into mood, stress, brain chemistry, and hormonal balance.