In the summer, body weight can go up by several pounds due to increased body water. This is accomplished through fluid-conserving hormones such as aldosterone, which allows the kidney to retain more fluid and reduces the amount of salt in sweat, a measure that also aids in water retention.
The population of Mason County has slightly increased since 2010. The largest city is Shelton, population 9,777, with the balance of residents living in unincorporated areas. Shelton has seen a 0.7 percent decline in population since 2010.
Mason Tourism: Best of Mason. Mason, Ohio. In the resort area of southwest Ohio, Mason features two major theme parks that attract families from all over the Midwest. Kings Island, the bigger of the two theme parks, has won Best Kids Area in the World for six consecutive years in a row from Amusement Today and remains a major attraction.