When done correctly, this routine behavior can have noteworthy results, according to doctors. Playing with your kids or grandkids, going on walks with friends, avoiding fractures, storing calcium and protecting your vital organs: These are all reasons it’s important to protect your bone health as much as possible. Further, bone health becomes increasingly threatened as we age — and earlier than you might think. Studies have shown that bone loss begins between the ages of 30 and 40 , and