Blog — Hormone Replacement Therapy

Discover the benefits of hormone testing in saliva, dried blood spot, and dried urine spot methods. Learn how each approach enhances accuracy, convenience, and health insights for hormone balance.

When Hormones Shape the Mind Hormones are powerful chemical messengers that quietly influence not only our bodies but also our thoughts and emotions. While neurotransmitters like serotonin and dopamine often get the spotlight for controlling mood, science now shows that hormones can have just as much impact on mental well-being. 1. The Emotional Swing of Oestrogen and Progesterone Women often experience emotional changes before menstruation, after childbirth, or during menopause. These phases involve major shifts in oestrogen and progesterone. Before menstruation: Falling oestrogen can lower serotonin, leading to irritability or sadness. After childbirth: A sudden hormone drop can trigger postpartum...

Alzheimer's disease is a slow and devastating condition that affects memory, cognition, and the ability to perform everyday tasks. Sadly, women are disproportionately affected: by 2050, over 9 million out of 13.8 million Americans with Alzheimer’s will be women. But why are women at greater risk? The answers lie not only in longevity but in biology, hormones, brain structure, and how women respond to stress. What is Alzheimer’s? Alzheimer’s is the most common form of dementia, marked by the gradual loss of neurons and brain function. Characteristic features include the buildup of beta-amyloid plaques and tau tangles, excessive neural pruning,...

Explore the vital role of estrogen in perimenopause, its impact on mood, sleep, heart and bone health, and the latest research on hormone therapy options.

The UK is facing a growing obesity crisis, with two-thirds of adults and a rising number of children classified as overweight or obese. A recent UK Parliament briefing highlights alarming trends, including regional and ethnic disparities and increased risks linked to socioeconomic status. While public health strategies continue to evolve, addressing the hormonal root of weight gain may offer a more effective, personalized solution. ZRT Laboratory’s Weight Management Profile helps uncover hidden hormonal imbalances—such as elevated cortisol, low testosterone, or thyroid dysfunction—that contribute to stubborn fat gain, poor metabolism, and increased disease risk.