Blog — estrogen

How Your Hormones Affect Athletic Performance and Why You Need to Start Testing

Posted by Ben White on

By Dr. Zane Hauck, ZRT Laboratory Growing up, I never thought of myself as a runner, or really a good athlete in general. I played every sport possible as a kid, but I was never great and didn’t play high school sports. As an adult, I started playing team sports again and eventually was convinced to run a 5k. I ended up running the Warrior Dash and enjoyed it, so I continued doing 3.2-mile training runs. For the rest of my 20s I continued running 5k races with friends and played volleyball, softball, and some casual intramural sports, but was...

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Topical Progesterone, Not Synthetic Progestins or Oral Progesterone, Should Be Considered as a Companion for Estradiol Replacement Therapy

Posted by Ben White on

By Dr.David Zava, ZRT Laboratory In 2002 several large-scale clinical studies were published on the risks of breast cancer in postmenopausal women using conventional FDA-approved hormone therapy. These were the Women’s Health Initiative (WHI) and Million Women’s studies of women using FDA-approved estrogens and progestogens in the United States and Great Britain, respectively [1,2]. Both studies came to the same conclusion – that estrogen therapy, mostly in the form of oral conjugated equine estrogens, by itself did not significantly increase the risk of breast cancer and, to the surprise of many, was associated with a lower risk. However, when estrogen was...

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The Younger, Sexy Me…nopause!

Posted by Ben White on

By Margaret Grove, ZRT Laboratory. Sometimes you look back and wonder where all the time went. Let’s see - in my twenties, the younger, sexier me had been to University and embarked on a career in medical research, and I’d been very active in my leisure time – including hiking and skiing every year in the Alps. I was too invested in my career and hobbies to have children and wanted to put that off until the right time. In my thirties, I eventually realized it was time to start a family before it was too late. At age 35...

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Getting to the Heart of Estrogen

Posted by Ben White on

By Dr. Sherry LaBeck, ZRT Laboratory The American Heart Association has designated the month of February as American Heart Month to raise awareness about heart disease and the healthy choices we can make to prevent it. Every year, 1 in 4 deaths are caused by heart disease. And while some risk factors are out of our control, such as family history, genetics, and aging, most of the risk factors for developing heart or cardiovascular disease are more often than not within our control. For example, lifestyle habits and behaviors such as smoking cessation, physical activity, healthy food selection, and how we...

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Menopause – Is It All In Your Head?

Posted by Ben White on

By Dr. Kate Placzek, ZRT Laboratory Estrogen.  We've heard Dr. Zava call it the "angel of life, and the angel of death." Too much can be hazardous. Too little can be problematic also.  Not many people realize this, but estrogen plays a role in more bodily functions than just reproduction. In fact, estrogen has many important functions in the brain.  Studies show that decreasing levels of estrogen can cause two of the most common perimenopause symptoms – hot flashes and mood fluctuations. Curious how this happens? Read on to learn the details of this biochemistry.  SUMMARY The main focus of this blog is the time in a woman’s life...

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