A more subtle climatological fact is that the average temperature and humidity in August is horrendous during the day, while the nights can be down right cold. (Can you say frost? I knew you could.) Either of these extremes can lead to health problems that have one symptom in common: the affected person gets stupid. As someone who has suffered from these medical conditions, I can think of no better description. The mental processes slow (or shut) down and you are in a walking stupor. The sufferer stops listening to reasonable advice and will do things that will seem stupid to them when they have recovered. Many other injuries at the War are probably related to these conditions. Watch your friends and yourself.