[Pansy-Mae]

Leaving aside the osteo-porosis effects of bone density, bones themselves do not change size once they stop growing in late teens ( usually). So nothing is going to give you wider hips or narrower rib cage, etc. Not hormones or anything else.

However, during aging, vertebrae become thinner, the spine compresses, and the cartilage padding (the 'discs') between the vertebrae wears away, making the trunk of the body look shorter. The arch of the foot bone lessens, contributing to the apparent loss of height.