Is it true that subjecting bones to stress helps them grow stronger?

I've heard that jumping is good for your legs, because the stress causes tiny fractures to occur which grow back stronger. I've also heard that light impacts on the fingers obtained during boxercise help keep the bones etc strong. Is this true?Is it true that subjecting bones to stress helps them grow stronger?
Bone is continually remodeled through out its life. The rates differ for the type and position of bone: e.g. the ends of long bones are completely remodeled (broken down and replaced) every four months but certain positions in the shaft of the femur will not be replace during an entire life time.


Remodeling may be increased by several factors: exercise being one which will increase it, also damaged bone is replaced by new and here if the stress is increased then the new growth is denser and so stronger.; further more the actual shape of the bone will change to accommodate a continual stress in a more efficient mechanical manner.


Astronauts who do not experience gravity i.e. no stress lose bone mass.Is it true that subjecting bones to stress helps them grow stronger?
One martial art style involves training by striking the shins repeatedly with sticks in order to build up bone mass so that the legs can be used as powerful smashing weapons and to gain an advantage over other fighters who are not used to opponents being physically prepared in this manner.





One of the problems faced by NASA was that in zero gravity, bone mass depletes, and that even with rigorous exercises every day, astronauts' skeletons become fragile over time. The Russian space program which had their cosmonauts in space for much longer periods than their American counterparts gained a lot of practical experience in this area. I'm not sure if any truly viable solution was ever found, though.





Whatever the case, the human body is well equipped to adapt itself to repeated stresses of certain types. However, other parts of the body, (such as teeth which cannot re-grow mass), this is not the case.
I don't know if ';stress'; has any effect on bone strength, but any exercise, including walking, helps strengthen bones.
yes but its not good to do the same impacts over and over because the bone will grow strong on one side and weak on the other