Osteoporosis is a medical condition in which the bones become brittle and fragile
as a result of loss of tissue.  This is typically a result of hormonal changes,
or deficiency of calcium or vitamin D.  The complications of osteoporosis,
including hip fractures and spinal fractures, can cause significant disability.
We’ll talk today about this condition, and whether you might be at risk.
Next week we’ll talk about how you can help prevent it from happening to you.

What causes osteoporosis?
OsteoporosisYour bones are living tissues that are constantly being broken down and rebuilt by specialized cells.  Osteoporosis is the result of the rebuilding process not being able to keep up with the breakdown of bone.  The rebuilding process relies heavily on calcium and vitamin D.  When you are very young, your body
makes new bone faster than it breaks it down.  As you get older, this gradually shifts to a steady state, then shifts to the breakdown outpacing the rebuilding.
Most people reach their peak bone mass by age 30.  Think of this as a “bone
bank account.”  You can only deposit into it until you are about 30 years
old, but you have to rely on that bank account for the rest of your life.
It is important to try to get to the highest peak bone bank balance that you can,
so you can withdraw from your bone bank account as you age, without that balance
dropping too low.
What are the risk factors for osteoporosis?
Risk factors include things that decrease your bone bank deposits, or increase your
bone bank withdrawals.  Some risk factors are out of your control, but some
you can control.  Risk factors include:
  • Age – Risk increases as you get older.
  • Sex – Women are at much higher risk for osteoporosis than men.
  • Race – The risk is highest in people who are white or of Asian descent.
  • Bone frame size – Smaller body frame size increases your risk.
  • Family history – Having a close relative with osteoporosis increases your
  • Hormone levels, including
    1. Reduced estrogen levels at menopause is one of the greatest risk factors for developing osteoporosis.
    2. Reduced testosterone levels as men age also increases the risk.
    3. Too much thyroid hormone can cause bone loss, either due to your thyroid being overactive, or taking too much thyroid hormone to treat an underactive thyroid.
    4. Abnormal function of the parathyroid or adrenal glands.
  • Dietary factors
    1. Low calcium intake – If you don’t get enough calcium when you’re
      young, you end up with a lower peak bone bank account.  As you age, lower calcium intake doesn’t allow you to keep up your balance.
    2. Eating disorders – Severely restricting your intake of food, or being significantly
      underweight contributes to lower bone mass.
    3. Soft drinks – We are not sure why, but people who drink a lot of carbonated
      soft drinks do have a higher risk of osteoporosis, especially if this intake starts
      at a young age.
  • Lifestyle factors
    1. Sedentary lifestyle – Weight-bearing exercise and activities that promote
      balance and good posture are beneficial for your bones, including walking, running, dancing, weightlifting, and many others.
    2. Smoking – Tobacco use has been shown to contribute to weak bones.
    3. Alcohol – Regular consumption of more than 2 alcoholic drinks a day increases
      your risk.

What are the complications of osteoporosis?

  • Hip fractures – These are often caused by a fall.  Hip fractures can result in significant disability and even increase the risk of death within the first year after injury.
  • Spinal fractures – These fractures can occur from an injury, such as a fall. Sometimes the bones in your spine become weak enough that they just crumple without any injury (like crushing an aluminum can).  This can cause significant pain, and can cause you to lose height or become unable to stand fully upright.
  • Other fractures – Any bone in your body will be more likely to break from an injury.
Osteoporosis is a serious health concern in the United States.  Over 1.5 million
fractures per year are attributed to osteoporosis.  Estimates indicate that
U.S. medical costs for osteoporosis range from $10 to $22 billion yearly, which
does not include the indirect costs of reductions in survival, quality of life,
and productivity.
Next week we will talk about how you can help to prevent osteoporosis as well as
available treatments.

If you have any questions about Osteoporosis, please log into your account and send
us your question. We are here to help.

Dr. Anita Bennett MD – Health Tip Content Editor

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