Osteoporosis – How and Why Bones Change During Life


Normal Processes – Bone Can Re-Grow

And the following is important information, and I just cannot find any way to make this fun.

So, it is a little dry, but it needs to be here so that you can know – with certainty – there is a normal, natural mechanism already in place that can rebuild bone.

Bone loss can be stopped and reversed

The parts in quotes are taken directly from the Bone Health and Osteoporosis – Report of the Surgeon General.

How Bones Change Throughout Life

“Throughout life, bones change in size, shape, and position. Two processes guide these changes – modeling and remodeling. When bone is formed at one site and broken down in a different site its shape and position is changed. This is called modeling.”

“However, much of the cellular activity in a bone consists of removal and replacement at the same site, a process called remodeling.”

Why We Need Modeling and Remodeling

“During childhood and adolescence bones are sculpted by modeling… (which) allows individual bones to grow in size and to shift in space.”

“The size and shape of the skeleton follows a genetic program, but can be greatly affected by the loading or impact that occurs with physical activity.

Ultimately bones achieve a shape and size that fits best to their function.

In other words, ‘form follows function.'”

Somewhere in our twenties, we reach a level of peak bone mass. “The remodeling process does not change the shape of the bone, but it is nevertheless vital for bone health, for a variety of reasons.

First, remodeling repairs the damage to the skeleton that can result from repeated stresses by replacing small cracks or deformities in areas of cell damage.

Remodeling also prevents the accumulation of too much old bone, which can lose its resilience and become brittle.

Remodeling is also important for the function of the skeleton as the bank for calcium and phosphorus.”

“Modeling and remodeling continue throughout life so that most of the adult skeleton is replaced about every 10 years. While remodeling predominates by early adulthood, modeling can still occur particularly in response to weakening of the bone.

Thus with aging, if excessive amounts of bone are removed from the inside, some new bone can be laid down on the outside, thus preserving the mechanical strength of the bone despite the loss of bone mass.”

The following is very clear regarding the potential to improve bone density and reverse osteoporosis.

(Discussing bone architecture or shape, and mechanical forces, genetic adaptations, etc.):

“In other words, bones will weaken if they are not subjected to adequate amounts of loading and weight bearing for sufficient periods of time.

If they are not (such as in the weightless condition of space travel), rapid bone loss can occur.

So, just as it is with muscle or your brain, it is “use it or lose it” with bone as well.

Conversely, the amount and architecture of the bones can be improved by mechanical loading.

However, as described in Chapter 6, some types of exercise may be better than others in strengthening the skeleton.

And it is an ongoing event…

“...bone is constantly changing. Old bone breaks down and new bone is formed on a continuous basis.

In fact the tissue of the skeleton is replaced many times during life.”

Many people have relatively weak bones even as young adults because of their genes or because of sub optimal nutrition and lifestyle.

That really is all we need to know about about modeling. The most critical factor regarding osteoporosis and new bone growth is exercise.

Exercise can reverse osteoporosis

– I know this because I see it all the time in my work. Osteoporois and osteopenia can improve at any age.

One last thought from Chapter 6 regarding exercise regarding those over age 75:

The substantial reduction in physical activity typically seen in individuals as they get older represents another important threat to bone health.

Maintaining, or preferably increasing, physical activity can mitigate some of the musculoskeletal problems of aging and can also provide many other health benefits.

Although physical activity must be maintained to preserve bone mass in this age group, the biomechanical strains from enhanced physical activity may promote increases in bone size than can help preserve bone strength even in the face of bone loss.

The purpose of all this is to assure you of the possibility of using safe, natural, effective methods to improve bone density and reverse osteopenia and osteoporosis.

Remember, there is a normal, natural mechanism already in place that can rebuild bone.

Osteoporosis can be stopped and reversed.

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