the climate is pleasant and the cost of living is low. The reason why Houston becomes the most ideal old-age city in North America is the pleasant climate. Because Houston is very warm all year round, there will be no too cold climate, and there will be no extreme high temperature in summer. At the same time, Houston has low cost of living, low tax burden, excellent medical conditions and high living standards, so it has become the most ideal old-age city in North America.