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NASA's Solutions for Preventing Osteoporosis on Earth

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NASA’s Solutions for Preventing Osteoporosis on Earth

Clip title: NASA Found How To Stop Osteoporosis Author / channel: Dr Brad Stanfield URL: https://www.youtube.com/watch?v=bPviC3mFAxg

Summary

This video, presented by Dr. Brad Stanfield, explores the perplexing problem of severe bone and muscle loss experienced by astronauts in space and, more importantly, translates NASA’s hard-won solutions into actionable advice for maintaining bone strength on Earth. Astronauts face significant bone mass loss, up to ten times faster than post-menopausal women, prompting NASA’s decades-long search for effective countermeasures. The journey involved numerous failed attempts, but each failure contributed to a deeper understanding of bone physiology.

Initially, NASA’s attempts focused on increasing cardiovascular exercise and ensuring adequate calcium and vitamin D intake. Despite astronauts rigorously using treadmills and bikes, their hip bone density continued to decline by over 1% per month. The logical next step was to supplement with calcium and vitamin D, based on the understanding that bone is living tissue constantly being rebuilt by osteoclasts and osteoblasts. However, this approach also proved ineffective in space. Furthermore, a comprehensive 2017 analysis of over 51,000 people on Earth revealed that calcium supplements (with or without vitamin D) did not reduce fracture rates and were even linked to potential damage to blood vessels. The takeaway here is that while calcium is essential, it’s best obtained from whole foods like dairy, leafy greens, and fish, rather than supplements, unless advised by a doctor for a specific deficiency.

The crucial insight NASA finally gleaned was that bone doesn’t rebuild simply because it’s fed or moved; it rebuilds when subjected to significant force or load. This principle is evident in professional tennis players, whose racket arms exhibit up to 35% thicker cortical bone due to decades of hard loading. In 2008, NASA introduced the Advanced Resistive Exercise Device (ARED), a machine capable of applying up to 600 pounds of resistance, mimicking heavy barbell squats and deadlifts. For the first time, this heavy resistance training successfully halted overall bone loss in astronauts. While it effectively maintained the hard outer shell of the bone, it still left a small gap in protecting the spongy honeycomb bone inside, necessitating the addition of bisphosphonate medication for complete protection.

For individuals on Earth, the primary lesson is the importance of “load” for bone health. A simple, daily exercise like hopping on one leg can lead to modest gains in hip bone density. However, to rebuild significant bone density, progressive, heavy resistance training is required. This type of exercise, involving movements like deadlifts, overhead presses, and back squats, has been shown to improve spine bone density in older women with low bone density, with minimal adverse events, unlike gentle, low-intensity exercise. Critical to the success and safety of heavy resistance training is proper supervision by an exercise scientist or physiotherapist. For those for whom even heavy loading isn’t enough to rebuild bone, medical options like bisphosphonates, similar to what astronauts used, can be considered, though potential side effects like osteonecrosis of the jaw must be discussed with a doctor, ensuring excellent dental hygiene first.

Video Description & Links

Description

🩺 Get your personalized health plan: https://drstanfield.com 📄 Full write-up & all the studies from this video: https://drstanfield.com/blogs/articles/astronauts-lose-bone-10x-faster-nasa-found-what-stops-it

Timestamps: 00:00 Why Astronauts Lose Bone in Space 00:32 Why Cardio Exercise Failed 01:02 Calcium Supplements and Fracture Risk 03:51 NASA’s Early Resistance Training Failure 006:24 Hopping as a Simple Starting Exercise 07:36 Progressive Heavy Resistance Training 08:59 Medication to Reverse Bone Density Loss 10:00 Conclusions and Key Takeaways

Video edited by Troy Young

The content contained in this video, and its accompanying description, is not intended to replace viewers’ relationships with their own medical practitioner. Always speak with your doctor regarding the content of this channel, and especially before using any products, services, or devices discussed on this channel.

Tags

longevity, anti aging, bone mineral density, bone health tips, osteoporosis, strong bones, low bone density, osteopenia, osteoporosis exercise, increase bone density, build bone density, vitamin d, bone

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