From Our Physicians
The Nova Blog
Articles from Dr. Knight and Dr. Di Giorgio on prevention, diagnostics, hormones, and heart health.
Latest · September 30, 2026
Why You’re Tired: Understanding Your Mitochondria and Cellular Energy
“I’m tired all the time.” I hear some version of this constantly in my practice. Sometimes it’s waking up tired despite getting eight hours of sleep. Sometimes it’s the 3 p.m. crash, brain fog, poor exercise tolerance, or feeling like you simply don’t have the energy you used to have. When someone tells me they’re...
Dr. Jennifer KnightMD, FACP, MSCP, ABOIMEarlier Articles
26 articles, newest first.
- September 23, 2026On HRT and Still Tired? Let’s Talk About TestosteroneOne of the most frustrating things I hear from women in menopause sounds something like this: “My hot flashes are so much better. ” Maybe it’s brain fog.
- September 17, 2026GLP-1 Medications Beyond Weight Loss: Could They Affect Longevity?A few years ago, most conversations about GLP-1 medications centered around diabetes and weight loss. That conversation has changed dramatically.
- September 2, 2026VO₂ Max: The Fitness Metric That Helps Predict How Well You’ll AgeWhen most people think about cardiovascular health, they think about cholesterol, blood pressure, or plaque in their arteries. As a cardiologist, I care about all of those things.
- August 26, 2026Microplastics and Heart Disease: What Patients Need to KnowMost of us don’t spend much time thinking about plastic. We recycle it. We drink from it. We store leftovers in it.
- August 19, 2026Heart Disease in Women: How Do Menopause, Pregnancy, and Sex-Specific Differences Influence Cardiovascular Prevention?When most people think about heart disease, they picture an older man clutching his chest. For decades, that image shaped not only public perception, but much of cardiovascular research itself.
- August 12, 2026The Menopause Symptoms No One Warns You AboutWhen most people think about menopause, they think about hot flashes. And yes, hot flashes are one of the most common symptoms.
- August 5, 2026Does Everyone with High Cholesterol Need a Statin?If there’s one medication that seems to spark more debate than almost any other, it’s statins.
- July 27, 2026Perimenopause: An Opportunity to Reclaim Your Health” They tell me they’re exhausted despite sleeping. Their anxiety feels different. They’re gaining weight even though they’re eating and exercising the same way they always have.
- July 15, 2026Root-Cause Medicine: Treating the Why, Not Just the SymptomsOne of the things that surprises people most during their first visit with me is that we spend a lot of time talking about things that don’t seem related to the reason they came in.
- July 13, 2026Functional Medicine vs Integrative Medicine: What’s the Difference?If you spend enough time searching for answers online, eventually you come across the term functional medicine. Most people are not really searching for a particular certification.
- July 10, 2026When Does Perimenopause Start? Earlier Than You Think” You’re 39. Or 42. Or 44. You’re still getting periods. Sometimes they’re even perfectly regular. You aren’t having hot flashes, so hormones aren’t even on your radar.
- March 4, 2026CVD Diagnostics and Advanced Screening ToolsDetecting Heart Disease Before It Starts Cardiovascular disease develops along a spectrum—beginning with common risk factors long before structural damage becomes apparent.
- March 4, 2026CVD: Early Detection & PreventionCVD is the leading cause of death in women – including breast cancer survivors Up to 50% of heart attacks occur in people with no warning signs.
- March 4, 2026Daily Nervous System Regulation: A Practical GuideBreathwork and mindfulness are powerful tools to help regulate your nervous system, improve mood, support hormonal balance, and reduce stress.
- March 4, 2026Does REMS Echo Light replace DEXA ?” The answer is yes—you should still have your DEXA scan when it’s due, especially if it is covered by insurance.
- March 4, 2026Homocysteine and Your HealthWhat is Homocysteine? Homocysteine is an amino acid in your blood related to a process called methylation, which helps your body function properly.
- March 4, 2026Strong Bones, Strong Body: Why We Use DEXA, EchoLight, and InBody TogetherWhen most people think about their health, they focus on cholesterol numbers, blood pressure, or maybe the number on the scale.
- February 23, 2026Adaptogens & Resilience: Boosting Well-Being in a Stressful WorldPlease note that the information here is for educational purposes only and is not a substitute for professional medical advice. Stress is an inevitable part of modern life—it’s everywhere.
- February 23, 2026Cardiovascular Disease: It's Time to Rethink PreventionLet’s begin with a wake-up call. Cardiovascular disease (CVD) remains the leading cause of death worldwide—and it doesn’t discriminate.
- February 23, 2026Genetics, Genomics, and Epigenetics: What’s the Difference?” Those are fair questions. For years, genetics was presented as destiny, something fixed and unchangeable.
- February 23, 2026Homocysteine: One of the Most Overlooked (and Easily Fixable) Risk Factors for Heart Disease and DementiaAt Nova Wellness, we believe that some of the most powerful changes in health come from the simplest steps.
- February 23, 2026How Hitting Rock Bottom at 40 Led Me to NAD+ and a New Path to HealthI entered my 30s feeling like I had it all: newly married to the woman of my dreams, a beautiful little girl, and another on the way.
- February 23, 2026HRV: How I Learned to Listen to My BodyWhen I bought my first fitness watch several years ago, I assumed I’d just be tracking my runs and counting my steps. I never expected it to spark a transformation.
- February 23, 2026Not All Supplements Are Created Equal: How to Choose the Ones That Truly WorkEvery week I’m asked where to buy supplements and which brands to trust. The reality is that the supplement industry is enormous, poorly regulated, and often misleading.
- January 22, 2026The Galleri TestMost of us are familiar with routine cancer screenings such as mammograms, colonoscopies, and Pap smears. While these are important, they only screen for a small number of cancers.
- January 19, 2026The EcholightEcholight is a radiation-free, advanced ultrasound technology that assesses both bone density and bone quality. It is fast, non-invasive, and performed in the office in just a few minutes.
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