Heatwave and suicide

It is extremely hot this summer. The situation looks similar in other countries, as I see foreign news regarding heat wave. Though we should be careful to discuss the environmental issues, the current climate is so cruel that I have to believe global warming is rapidly growing.

In Japan, several people died due to the heat stroke. We should be aware of the dangerousness of the hot temperature. Also, some studies suggest heat wave increase the risk of suicide. In general, cold temperature and the lack of sunshine is associated with the increased suicide rate. But, is it true too much heat is also relevant to suicide?

I have not read the published papers discussing the relationship between the heat and suicide. Why suicide rate is high in cold regions is sunshine or any other kind of light, has a preventive effect against depression. There seems not a persuasive explanation to connect the heat and suicide. Perhaps, rapid change of environment can cause you distracted mood.

Anyway, keeping your surroundings comfortable is essential for your health. I hope no more people are killed by this summer.