We note the possibility that the concentration of methallothionein may affect the toxicity of inorganic mercury. As shown in Figure 1, the elderly were the ones who are most vulnerable to extreme temperature, and thus lead to high mortality rate. This trend was seen among other regions of Japan. The present data suggest that the elderly should dress appropriately in order to avoid excessive extreme heat or cold. Natural disasters such as typhoons and flooding may also occur more frequently.
Comprehensive predictions are yet to be made.