Ragav Sharma, DO Ragav Sharma, DO is a Physical Medicine and Rehabilitation (PM&R) physician with training in interventional spine and musculoskeletal medicine. He formerly set powerlifting records and has also completed several races including ultramarathons. He is an avid proponent of resistance training and has coached others, obtaining a Certified Strength and Conditioning Specialist (CSCS) certification, for both general health and powerlifting goals. In this episode, Dr. Ragav Sharma breaks down the science and strategy behind resistance training — one of the most powerful tools for improving long-term health, performance, and longevity. We explore what the evidence says about strength training for muscle growth, fat loss, metabolic health, injury prevention, and healthy aging. If you’ve ever wondered how often to lift, what exercises actually matter, or whether resistance training is “safe,” this episode gives you the no-nonsense, research-driven answers. Dr. Sharma's Social Media Instagram Link Show Notes What Is Resistance Training?Resistance training involves contracting skeletal muscle against external resistance to challenge strength and stimulate muscle growth. That resistance can come from:Bodyweight exercisesFree weights (dumbbells, barbells, kettlebells)Resistance bandsMachinesHousehold objects (backpacks, water jugs, cinder blocks)Strength training is not just for athletes or bodybuilders. It is one of the most potent therapeutic tools we have for improving overall function, mobility, and longevity — and it should be accessible to everyone.The Evidence-Based Benefits of Resistance Training1. Improved Body CompositionResistance training:Increases fat-free mass (muscle)Reduces overall and visceral fatHelps preserve muscle during weight loss or GLP-1/GIP therapyPredicts lower mortality independent of BMIMuscle is metabolically protective. Higher muscle mass is associated with a lower risk of chronic disease and death, even in those with a high BMI.2. Stronger Bones and Lower Fracture RiskBone density peaks around age 25–30 and declines after 40, especially in women. Walking alone does little for bone mineral density.Mechanical loading — squats, deadlifts, step-ups, weighted carries — is essential for:Increasing bone densitySlowing osteopenia and osteoporosisReducing fracture riskMaintaining physical function later in lifeOne of the strongest demonstrations is the Lift More Trial, where women 60+ with diagnosed osteoporosis safely performed heavy squats and deadlifts twice per week. They improved bone density significantly, with only one mild strain in over 2,600 sessions.3. Cardiovascular BenefitsMany people assume aerobics is the only way to protect the heart. The data tells a different story:Any resistance training → 19% lower cardiovascular mortalityImproves LDL, HDL, triglycerides, blood pressureEnhances functional capacity in heart failure patientsThe best results come from combining aerobic exercise with strength training — but strength training alone has a meaningful impact.4. Improved Metabolic HealthStrength training increases insulin sensitivity through GLUT4 upregulation and:Lowers HbA1c in both type 1 and type 2 diabetesReduces visceral fat, a major driver of insulin resistanceImproves metabolic flexibilityFor people unable to tolerate high-impact cardio, resistance training becomes even more important.5. Mental Health BenefitsThe psychological benefits are just as powerful:Significantly reduces anxiety symptomsLowers depressive symptoms in adolescents and adultsBenefits occur regardless of strength gainsSimply engaging in resistance training reliably improves mood and mental well-being.6. Reduction in Chronic PainMovement is medicine — and resistance training consistently reduces pain:Decreases chronic low back painImproves pain and function in knee osteoarthritisHelps patients with fibromyalgia reduce fatigue and tender...
