The ZRT Laboratory Blog

The ZRT Blog is an extensive resource for patients and health care providers searching for health and hormone testing information. Here, you can read about ZRT’s cutting edge research, advances in testing, wellness advice, and health industry highlights.

New Study Links Testosterone & Desire For Luxury Goods

Posted by Dr. Kate Placzek on Tuesday, 10 July


Testosterone, so meaningful to a man’s behavior, is the evolutionary force behind everything intrinsically “male.”  

Historical stereotypes peg testosterone as the macho elixir of legendary magnitude – the “chest-thumping hormone of aggression.” New research, however, is beginning to tease out previously unknown subtleties of testosterone’s effects on behavior. Testosterone is non-trivial for social functioning –  increasing levels enhance generosity [1], cooperation [2], and honesty [3], thereby emphasizing that its effects in shaping male psychological makeup are infinitely more complex than previously thought.

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5 Tips to Getting Started with ZRT Testing

Posted by Dr. Alison McAllister on Friday, 06 July

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Health care providers (HCPs) who want to get started with ZRT Laboratory need only take a few easy steps to begin using our saliva, dried blood spot and dried urine tests. Simply set up an account, order kits and then identify the patients who can benefit from hormone, neurotransmitter, heavy metal, and cardiometabolic testing. Best of all, when HCPs have questions about reports and treatment plans, they can simply call our team of clinicians for answers.  

Want more details on using ZRT? Read on to learn Dr. Alison McAllister’s 5 tips for successfully integrating ZRT testing into your practice.

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ZRT’s Favorite Healthy Eating Summer Recipes

Posted by Dr. Sherry LaBeck on Tuesday, 03 July


Hello summer! The ZRT docs and staff have compiled some tasty recipes to include for your family picnics or impromptu gatherings with friends.  From a refreshing herbal beverage and a cool creamy soup to a zesty, peppery corn dip and tangy, nutty quinoa salad, the foods that make up summer fare can be simple to prepare as well as delicious. The addition of spicy, savory grilled chicken thighs boosts the protein up a notch. Then top these off with a delectable mini muffin containing nut butter and chocolate chips! What more could you want? Fruit sorbet, of course! Enjoy!!

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The Connection Between GABA & Sleep Disturbances

Posted by Dr. Allison Smith on Wednesday, 20 June


Gamma-aminobutyric acid, better known as GABA, is the neurotransmitter known for its affinity for GABA receptors throughout the central nervous system (CNS). It acts to inhibit excitatory processes – whether they be normal or pathological.

It's synthesized from the excitatory neurotransmitter glutamate in a process that requires vitamin B6 as a cofactor. The delicate balance in the brain between GABA and glutamate is orchestrated by shuttle systems from the Krebs Cycle, the presence of NMDA and GABA receptor modulators, enzyme cofactors, and reuptake mediators.  

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