Eat calcium-rich foods.
Take calcium supplements. ...
Add Vitamin D to your day. ...
Do weight-bearing exercises. ...
Don't smoke, and don't drink excessively. ...
Get your bone mineral density tested. ...
Answer:
Human subject research is systematic, scientific investigation that can be either interventional (a "trial") or observational (no "test and Human subject research can be either medical (clinical) research or non-medical (e.g., social science) research.
It can make antibodies immediately!!