In addition, although humidity is positively correlated with longevity, and altitude is negatively correlated with longevity, the results of non-linear regression in GWR shows that in the moistest place in Southeast China, humidity is negatively correlated with longevity, as illustrated in Figure 18; and in highest place in West China, altitude is positively correlated with longevity. The reason for these phenomenon is unknown, as illustrated in Figure 19.