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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.


Post-GLP-1 Strength Plan: Maintain Weight Loss and Preserve Lean Mass
Build Muscle, Keep Progress: The Post-GLP-1 Advantage Coming off a GLP-1 medication like Ozempic, Wegovy, Mounjaro, or Zepbound can feel confusing. While you were on the drug, appetite was quieter and the scale often moved down. Once the dose drops or stops, hunger creeps back, cravings feel louder, and old habits try to return, especially as cooler weather and social events pick up. This is the “what now?” moment. The goal shifts from fast loss to smart maintenance. At this
Mission Metabolic Health Team
Oct 225 min read


Rebuilding Bone Strength: When Osteoporosis Needs a Metabolic Approach
Stronger Bones, Longer Life: A New Way to View Osteoporosis Osteoporosis is often described as “thin bones,” but it is really a whole-body problem. When bone becomes weak, the risk of fractures, loss of independence, and long recovery times goes up. Hip and spine fractures can change daily life in a single day, especially as we get older. At its core, osteoporosis is a metabolic issue. Hormones, muscle mass, nutrition, inflammation, sleep, and daily movement all affect how bo
Mission Metabolic Health Team
Oct 156 min read


How to Measure and Monitor Muscle Loss: DXA, Strength, Protein, and Labs
Protecting Muscle While You Lose Weight Rapid weight loss that only focuses on the scale often trades something important: your muscle. When muscle drops along with fat, metabolism slows, energy dips, and it becomes easier to regain weight later. That is the opposite of what most of us want when we say we want to be “healthier.” Muscle is not just for athletes. It helps control blood sugar, supports your joints, protects bones, and keeps daily tasks like climbing stairs or ca
Mission Metabolic Health Team
Oct 86 min read


When a Weight Management Plan Should Include Hormone Testing
Unlocking Lasting Weight Loss with Hormone Insights Many people follow a weight management plan, check all the boxes, and still feel stuck. Calories are lower, workouts are harder, but the scale barely moves or creeps up again. This is especially common as we move through our 30s, 40s, and beyond, when the body simply does not respond the same way it used to. Hormones are a big part of that shift. Think of them as metabolic messengers that tell your body when to burn, when to
Mission Metabolic Health Team
Oct 16 min read


Concierge vs. Telehealth Metabolic Care: A Guide for Michigan Executives
Metabolic health is not a “nice to have” for executives. It is one of the levers that shapes how clearly you think, how well you handle stress, and how long you can perform at a high level. When your schedule is packed with travel, late nights, and hard decisions, guessing with your health stops working. In Michigan, many executives are choosing between a concierge doctor relationship and telehealth-only metabolic care. Both can help with weight, hormones, energy, and prevent
Mission Metabolic Health Team
Sep 176 min read


Intrinsic Capacity: The New Language of Healthspan
by Dr. Sean Cassleman, DO For years, "healthspan" has been the word used to describe living not just longer, but better — more years free of disease and disability, not just more years on the calendar. It's a good concept, but it's always been a little abstract. A new term is starting to give it teeth: intrinsic capacity. The New York Times recently introduced many readers to this idea in a piece by Dana G. Smith, "Intrinsic Capacity: The Most Important Longevity Term You've
info1397740
Sep 164 min read


Concierge Metabolic Care ROI: 90-Day Case Study vs. Primary Care Outcomes
Why 90 Days of Concierge Metabolic Care Matters Now Fall is when a lot of small health slips start to add up. The slower workouts after summer, the extra screen time during busy school nights, the comfort food as the weather cools. Weight creeps up, stress climbs, and sleep quality often drops, even for people who feel generally healthy. A focused 90-day window can change that pattern. When we look at your health in a detailed way for three months, we can see real movement in
Mission Metabolic Health Team
Sep 107 min read


Weight Management for Michigan Executives Who Travel: Jet Lag and Strength
Stay Lean While You Lead Frequent travel can quietly pull a healthy routine apart. One month you feel in control, the next your suits fit tighter, your sleep is off, and your energy lives on coffee and airport snacks. If you lead a Michigan-based team and spend half your life on planes and in hotels, this can feel like the price of success. It does not have to be. A weight management plan for a travel-heavy executive needs to be different from the generic office-based plan. I
Mission Metabolic Health Team
Sep 36 min read


VO2 Max Testing: Benefits, Process, and What Results Mean
VO2 max testing gives you a clear look at how efficiently your body uses oxygen during exercise. Unlike a smartwatch estimate, this professionally administered test measures the gases you breathe to assess cardiorespiratory fitness with greater precision. At Mission Metabolic Health, we view aerobic fitness as more than an athletic metric. It is a useful baseline for understanding your cardiovascular capacity, metabolic health, daily energy, and long-term ability to stay acti
Mission Metabolic Health Team
Aug 274 min read


Common Testosterone Replacement Therapy Mistakes in Michigan
Avoiding Costly TRT Mistakes From Day One Testosterone replacement therapy, or TRT, is becoming more common for men and some women in Michigan who want better energy, strength, mood, and sex drive. From busy professionals commuting around Metro Detroit to active retirees near the lakeshore, more people are asking if low testosterone could be part of why they feel off. When TRT is done well, it can be one helpful tool in a bigger health plan. When it is done poorly, it can lea
Mission Metabolic Health Team
Aug 206 min read


Inside a Longevity Program: What Serious Patients Overlook
A strong longevity program is about much more than a few supplements and a yearly lab slip. It is a structured way to stay strong, sharp, and independent for as long as possible, using science, testing, and real support, not guesswork. That matters if you want your future years to be active years, not just more time on the calendar. Interest in longevity often spikes as summer winds down and routines tighten up again. People feel the gap between what they intend to do for the
Mission Metabolic Health Team
Aug 135 min read


When a Weight Management Plan Should Go Beyond the Scale
Rethinking Summer Weight Goals for Long-Term Health A weight management plan should help you feel better all year, not just look a little different in your summer photos. As late summer rolls in, many people feel a quiet panic about vacations, reunions, or heading back into the office and try to squeeze in a few last quick fixes. That deadline mindset often leads to crash diets, extra cardio, and a narrow focus on what the scale says each morning. Then fall hits, routines c
Mission Metabolic Health Team
Aug 66 min read


Executive Health Physicals and the Hidden Metabolic Burnout Trap
The Hidden Cost of High Performance for Executives Many executives pass their annual physical, get told everything looks fine, then walk out feeling confused. On paper they are healthy. In real life they feel wired, tired, and running on caffeine and adrenaline just to keep up. That gap is where hidden metabolic burnout lives. High performers often focus on avoiding the big scary problems like heart attack, stroke, or cancer. Traditional executive physicals are usually built
Mission Metabolic Health Team
Jul 307 min read


The Strengths and Blind Spots of A1c
A while back, a patient came in with an A1c that looked completely unremarkable — solidly in the normal range, nothing that would raise a flag on a standard panel. But once we put a CGM on, a different picture emerged: glucose spiking well above 200 mg/dL after certain meals, several times a week, followed by crashes not long after. None of that showed up in the labs. The average simply smoothed it all out. It's a good reminder of what A1c can and can't see. What A1c Does Wel
info1397740
Jul 293 min read


Metabolic Health Doctor vs. Weight Loss Clinic in St Clair Shores
Choose a Partner, Not Just a Program Many people in St. Clair Shores know the cycle: rush into a “summer body” plan, watch the scale drop for a few weeks, then see the weight creep back by Labor Day. It feels exhausting, and it often leaves you feeling like you did something wrong. The truth is, quick weight loss programs are usually built for speed, not for your long-term health. A metabolic health doctor takes a different path. Instead of chasing a goal for one season, th
Mission Metabolic Health Team
Jul 237 min read


Breaking Plateaus with Physician-Guided Weight Loss
Break through the Weight Loss Wall This Summer Getting stuck at the same number on the scale is frustrating, especially when you feel like you are doing everything right. You are eating healthier, moving more, tracking your food, and still nothing changes. The clothes fit the same, the energy feels flat, and it can start to feel like your body is working against you. This standstill is called a weight loss plateau, and it is a normal response from your body, not a sign that y
Mission Metabolic Health Team
Jul 166 min read


Longevity Medications: Baseline Labs, Contraindications, and Monitoring
Start Safer, Live Longer: Why Testing Comes First Longevity medication can be a powerful tool to support healthspan, energy, and performance. These medications can shift hormones, metabolism, appetite, and even cardiovascular risk markers. That is why the smartest first step is not picking a prescription, but running the right tests. Baseline labs give you a clear “before” snapshot. They help uncover silent risks, guide dosing, and show if a medication is working for you or w
Mission Metabolic Health Team
Jul 96 min read


Longevity Medication vs. Longevity Program for Real Healthspan
Rethinking Longevity Before You Fill a Prescription Longevity is not just about adding more candles to a birthday cake. It is about how many of those years you spend strong, clear-headed, and able to do what you love. That is what we mean by healthspan, the quality of your years, not just the count. Many busy professionals reach a point where health starts slipping. Sleep is off, weight creeps up, energy is lower, and stress feels constant. At that moment, a quick prescriptio
Mission Metabolic Health Team
Jul 26 min read


Choosing a Metabolic Health Doctor for Real Longevity Change
Turn Frustration Into Long-Term Metabolic Change Trying a new diet or app can feel exciting for a few weeks, then the old habits creep back in. The weight returns, the energy drops, and it feels like you are back at square one again. Many people repeat this cycle over and over, especially around summer, when clothes are lighter and health worries feel louder. That constant “starting over” is exhausting. It is not just about willpower. It is usually about an overlooked root ca
Mission Metabolic Health Team
Jun 257 min read


Can You Really Reverse Type 2 Diabetes? What the Research Actually Says
If you've been diagnosed with type 2 diabetes, there's a good chance your doctor told you something like this: "It's a chronic, progressive condition. We'll manage it with medication, but it won't go away." That's not a lie. But it's not the whole truth either — and for a lot of people, it becomes a self-fulfilling prophecy. The reality is that over the past two decades, a growing body of rigorous clinical research has challenged the assumption that type 2 diabetes is always
info1397740
Jun 226 min read
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