Sebastian Oreb | Online Coach & Mentor for Personal Trainers on Instagram: "Lifting weights will improve your bone mineral density. But lifting HEAVY weights is what makes the biggest difference. Heavy means above 80 percent of your max. That is the one to six rep range. It places a high mechanical load on the bone and signals your body to build stronger, denser bones. This is especially important for menopausal women and anyone wanting to age with strength and independence. But here is what mos

MIchael Vandeven on Instagram: "When the load on the body exceeds what the spine can safely handle, the nervous system doesn’t give up — it adapts. Under extreme weight, uneven leverage, or fatigue, the spine may temporarily curve sideways, creating a scoliosis-like shape to spread forces and avoid immediate fracture or disc failure. This isn’t “good posture” — it’s survival mechanics. Asymmetric loading, weakened core support, poor lifting angles, and exhaustion all increase shear and compressi