People who exercise regularly can reduce their risk of osteoporosis. megaloblastic anemia. hemosiderosis. all of these are correct.

I believe that people who exercise regularly can reduce the risk of osteoporosis. Osteoporosis is a condition of fragile bone with increased susceptibility to fracture. It weakens the bones and increases the risk of bones breaking. Exercises such as brisk walking, jogging, jumping rope, climbing stairs among others may reduce the risk of osteoporosis. 

The answer would be dogs.