The health effects of lower gravity than on Earth are not quite the same as those of weightlessness. Using formulas to calculate the rate of muscle and bone calcium deteroration in lower gravity is misleading because the deteroration stops when the remaining muscle mass and amount of calcium in the bones is just right for that particular level of gravity and health problems and (re)adjustment problems can be solved by not justifying things, see Advice of ways to stop justifying, multiple stages of justification poisoning, brain, inheritance of acquired characteristics and self-organization on See weightlessness for more extreme cases.