16. what is osteoporosis? how can it affect bones? why is calcium important to bones?

Osteoporosis is a medical condition in which the bones become brittle and fragile from loss of tissue, typically as a result of hormonal changes. Our bones store calcium in addition to providing support for our bodies.

a medical condition in which the bones become brittle and fragile from loss of tissue, typically as a result of hormonal changes, or deficiency of calcium or vitamin D

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