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Welcome to the Mission Metabolic Health Blog
Here you'll find articles written by Dr. Cassleman, covering a wide range of topics related to metabolic health, weight loss, hormone therapy, and preventative medicine. Each post is grounded in medical expertise and real-world patient care—designed to educate, inspire, and support you on your health journey.


Conquering Jet Lag- A Practical Approach
When I think about how disruptive jet lag can be, I picture a patient at Mission Metabolic Health who flies internationally several times a year and came to see me last year because he felt “off” for a full week after every trip—foggy at work, irritable with his family, and unable to get his sleep back on track. We treated his jet lag like a real medical problem, not an inconvenience, and put a structured plan in place so his travel stopped derailing his health and performanc
Dr. Sean Cassleman
Jan 273 min read


An Excellent Opportunity to Reset Your Sleep
Sleep is one of the most powerful levers you control for your heart, brain, metabolism, and long‑term vitality. Naturally it’s a major focus for us at Mission Metabolic Health. With the holidays behind us and long winter nights ahead, this is an ideal moment to reset your sleep and invest directly in your future health. How Much Sleep, and Why It Matters Adults who consistently get around 7–8 hours of sleep live longer and have lower rates of cardiovascular events than those
Dr. Sean Cassleman
Jan 82 min read


Balancing Longevity and Living: Why Quality of Life Matters Just as Much as Quantity
At Mission Metabolic Health, we help patients chase the goal of a long, healthy life — not just more years, but better ones. In that pursuit, it’s easy to focus entirely on the quantity of life: the right diet, optimal sleep, tailored exercise, and precise biometrics. These are the anchors of good health, no doubt. But there’s another dimension we can’t afford to neglect: quality of life — the simple joy, meaning, and connection that make those years worth living. This ba
Dr. Sean Cassleman
Dec 10, 20252 min read


Sexual Health is an Important Part of Health
Sexual health is an essential component of overall well-being, deeply connected to quality of life, chronic disease risk, and longevity. Many adults' value sexual health highly, and its impact stretches across emotional, physical, and mental domains, making it a critical subject to address in primary care for both men and women. Sexual Health & Quality of Life Sexual health is highly important to quality of life for both men and women, with large-scale studies showing that s
Dr. Sean Cassleman
Nov 11, 20252 min read


Are Mammograms Enough?
Breast cancer risk calculation is a vital step in modern, proactive healthcare—and at Mission Metabolic Health, it’s a core service provided by Dr. Cassleman and our team. Understanding your unique risk of breast cancer allows us to create truly individualized screening and prevention strategies, allowing for early detection, and improving long-term outcomes for every patient we serve. Why Risk Calculation Matters Breast cancer risk tools, such as the Gail Model and the Tyre
Dr. Sean Cassleman
Oct 29, 20252 min read


Peptide therapies, an exciting and evolving class of treatments
Peptides are short chains of amino acids that act as signaling molecules in the body, with a variety of targets to achieve wellness and...
Dr. Sean Cassleman
Oct 6, 20252 min read


Longevity is a term you hear a lot these days but what does it mean to be a longevity focused doctor?
Longevity is achieved not by treating symptoms, but by proactively addressing the causes of chronic disease through comprehensive...
Dr. Sean Cassleman
Sep 22, 20252 min read


Why Primary Care Feels Broken—and How We Do It Differently
For many people, a visit to the doctor’s office leaves them feeling more frustrated than helped. Patients often walk out of appointments...
Dr. Sean Cassleman
Sep 10, 20252 min read


Maximizing Early Cancer Detection: The Role of MRI, Liquid Biopsy, and Trusted Medical Guidance
Early detection is one of our most powerful weapons in the fight against cancer, and here at Mission Metabolic Health, we’re committed to...
Dr. Sean Cassleman
Aug 18, 20253 min read


Testosterone in Women: A Critical, Overlooked Hormone
Testosterone is commonly mislabeled as a "male hormone," but this is a misconception. In fact, testosterone is the most abundant...
Dr. Sean Cassleman
Jul 30, 20253 min read


Understanding Lipoprotein(a): A Commonly Overlooked Heart Risk Factor
What Is Lipoprotein(a)? Lipoprotein(a), often abbreviated as Lp(a), or “LP little a” is a type of cholesterol particle found in your...
Dr. Sean Cassleman
Jul 9, 20252 min read


Why a Standard Lipid Panel May Not Be Enough
Cardiovascular health remains a cornerstone of longevity. Unfortunately, traditional approaches to lipid management often overlook...
Dr. Sean Cassleman
Jun 23, 20253 min read


Frailty: When Resilience Fades
Not long ago, a close friend shared a heartbreaking story about her mother. Once independent and lively, her mother’s health began to...
Dr. Sean Cassleman
Jun 10, 20253 min read


Cardiovascular risk from TRT? What It Means for Metabolic Health
For many years there have been concerns about the safety of testosterone replacement in men from a cardiovascular standpoint. The...
Dr. Sean Cassleman
Apr 29, 20252 min read


Osteoporosis and Menopausal Hormone Therapy
Menopause significantly accelerates bone loss, increasing the risk of osteoporosis—a condition affecting 1 in 2 postmenopausal women globally.
Dr. Sean Cassleman
Apr 16, 20252 min read


The Destructive Impact of Low Testosterone on Metabolic Health
Low testosterone levels can have a destructive impact on men's health, particularly in relation to metabolic function. At Mission...
Dr. Sean Cassleman
Feb 21, 20253 min read


Osteoporosis Prevention: Why Aren’t We Talking About Exercise First?
Despite good intentions and sometimes good outcomes I commonly see our approach to osteoporosis in medicine fall short. This is typically...
Dr. Sean Cassleman
Feb 21, 20252 min read


Osteoporosis Screening: A Call for Earlier Action
As a physician, I see far too many patients diagnosed with osteoporosis only after they’ve already suffered significant bone loss. The...
Dr. Sean Cassleman
Feb 21, 20252 min read


Menopausal Hormone Therapy (MHT)/(HRT), is it worth considering?
This article will explore the positive effects of HRT on body composition, bone health, lipids, insulin resistance, sex life, and the manage
Dr. Sean Cassleman
Nov 5, 20244 min read


GLP-1 Weight Loss Medications: Exploring the Other Options
Listening to current media it may seem like weight loss drugs did not exist before the advent of GLP-1 medication, but there are other...
Dr. Sean Cassleman
Jun 10, 20243 min read
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