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.
In the 2005-9 period, the foreign-born. population of Mason County was estimated to be 4%. The rate of change has decreased. from 97% increase between 1990 and 2000, to 11% increase from 2000 to 2005/9 period.