Hormone Health Hub: Expert Insights on Testing, Balance & Better Living — Dried Urine

Dried urine testing is rapidly becoming the preferred method for neurotransmitter and hormone assessment — but collection timing is everything. In this clinical overview, Dr. Kate Placzek of ZRT Laboratory explains why a single morning urine sample cannot substitute for a 4-time-point collection, how neurotransmitters like epinephrine and norepinephrine follow distinct diurnal rhythms, and why interchanging the first and second morning voids can produce grossly inaccurate results.

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...

Norepinephrine and epinephrine follow a distinct diurnal rhythm — rising through the morning, peaking in the afternoon, and falling at night. When this pattern is disrupted by chronic stress, the consequences ripple through every hormonal system in the body. Learn how the stress response works and how dried urine testing can reveal imbalances.