Why do you need Calcium for bone heath and what are the popular myths
Channel: IMPractitioners
Date: 17/06/2011

http://preventosteoporosis-improveyourbones.com/why-are-women-more-at-risk-for-osteoporosis-than-men-2/   Women get Osteoporosis more often than men for two key reasons:
 
First, women's bone mass is naturally less than men's because women are smaller and have less muscle mass. When we use our muscles, the muscle contractions put stress on bone, which makes bones stronger. Men's larger muscles produce stronger contractions, resulting in more stress and approximately 35--40% larger bones.
 
Secondly, the female hormones, estrogen and progesterone, are instrumental in bone remodeling, and often the levels of both hormones drop at menopause (medically defined as the last menstrual period). The median age for menopause is usually around 51, but the range for its onset is large—generally between ages 42 and 58. Estrogen prevents excessive action by the bone cells that remove worn out or dead bone to make room for new bone. Progesterone is required by the bone-forming cells that pull calcium, magnesium, and phosphorous from the blood to build new bone. Production of both hormones greatly declines during a woman's transition through menopause, resulting in increased bone resorption and decreased formation of new bone.

http://preventosteoporosis-improveyourbones.com/answers/osteoporosis/