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

Explore the powerful connection between cortisol, melatonin, inflammation and circadian rhythms. Learn how disrupted hormone patterns may contribute to fatigue, insomnia, stress, cardiovascular disease, diabetes, depression and even cancer risk. This article reviews the latest insights from ZRT Laboratory doctors on hormone testing, sleep biology, stress physiology and the importance of maintaining healthy daily hormone rhythms for long-term wellness.

A melanoma diagnosis changes everything — but it can also be the catalyst for a smarter, more proactive approach to skin health. In this personal account, Lissa Gienty of ZRT Laboratory shares her melanoma story and the evidence-based steps she now takes to protect herself, including optimising vitamin D and melatonin levels and monitoring her diurnal hormone rhythms.

By Dr. Allison Smith, ZRT Laboratory I would like to thank everyone who joined in our webinar on the Role of Hormones in Sleep Disturbances!  There were a number of questions I wasn’t able to address due to time constraints but they were all excellent questions. I thought at least someone would be interested in a follow-up as I speak to the rest of the questions just as a little wrap-up. Q: Wouldn't it be nice to include Dried Urine Melatonin in your ZRT Comprehensive Profile, to be able to evaluate Morning Cortisol when low? Maybe it is low while Melatonin...

By Theodore Zava, ZRT Laboratory        While growing your own fruits and vegetables is both challenging and rewarding. Many people plant gardens with the expectation that they can control what goes into their food. Gardening, especially in urban areas, has grown in popularity, but unfortunately, it comes with some risks. Contamination with elements present in the air, soil, or groundwater is a concern in both urban and rural gardens, and fruits and vegetables are good accumulators of heavy metals. This blog post details sources of heavy metal contamination and what you can do to help prevent soil contamination...

Most people think of melatonin as a sleep supplement — but this remarkable hormone is produced throughout the body and plays a central role in immune defence, inflammation, pain management, gut health and even cancer protection. Dr. Allison Smith dives deep into the biochemistry of melatonin and explains why getting your levels right matters far beyond a good night’s sleep.