力量训练和high impact exercise 应该是可以减缓下降的速度，Vitamin D K, 镁, 钙

刚刚看到：you can lose one-fifth of your bone density during the five to seven years following menopause. in women when hormones flatline after menopause, bone loss can accelerate to 2% annually until it shlows to about 1-1.5% loss per year a few years postmenopause.