How do I increase my bone density?

Can you answer bob t’s question about Osteoporosis?:

I’m 13 ,and I want to increase my bone density, as I read that asians and Caucasians have lesser bone density than other ethnic groups. I would also find it helpful when practicing martial arts and wrestling. If there is, could you also tell me how to make my bones bigger?
oh btw dont tell me to increase my calcium intake i know that.

What exercises (bodyweight and weights) can I do???

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