On the eighth of October comes Cold Dew, the first sign of real cold. The days stay warm, but the nights grow sharp. In many homes, a small argument starts. Older people quote an old rule: no cold showers, no bare ankles, and eat sesame and pears. Younger people answer with the weather report. In truth, both sides are right. Our bodies do need time to adjust, and it is the sudden drop in temperature that causes trouble, not the date itself. What matters is not who wins the argument. It is that someone remembers to bring a jacket.