81.   The women who weighed the least had the greatest loss in bone density, and neither calcium supplements nor vitamin D appeared to decrease the problem.

82.   The X-rays were used to calculate bone density.

83.   Then Weiss went further, spending his own money to buy an expensive piece of equipment that measures bone density.

84.   Then, after a year or two, their bone density is measured, or their fractures are counted.

85.   There are also some medications available now that increase bone density.

86.   There is also some evidence to suggest it may have a negative effect on bone density, he said.

87.   This time, she was also diagnosed with low bone density, a consequence of a shortage of estrogen and thus an inability to properly absorb calcium.

88.   Ultrasound waves move through the heel and measure bone density.

89.   What can people do to increase bone density?

90.   Whether caffeine is dangerous for pregnant women and whether it contributes to decreased bone density and osteoporosis are issues still being debated in the scientific community.