Hi What is chiropractic?

What is chiropractic therapy ?
its a kind of alternative medicine which is mainly hands-on practice to your body ( mainly bones and muscle ) , and it claims that its treat various medical condition such as bone pains and skeletal injuries 
- the chiropractor is the person who practice this kind of medicine , and during the session , he/she will you hand to apply force on your body part with aid of some instruments 
is chiropractic therapy safe ?
its mostly safe ( make sure to go to certified practitioner 
is chiropractic medically proven ?
there is no scienctific proof behind chiropractic therapy 
is chiropractic helpful ?
some investigations reveal that it may be helpful a little with low back bone