Is it true that the ninth day of the fifth lunar month is poisonous?

Friends on the first floor say that the ninth day of the fifth lunar month is superstition and exaggerates its harm. What happened on the ninth day of the ninth lunar month was that both husband and wife died in three years (of course, this statement was handed down from ancient times)

In fact, the reason is that the weather in May of the lunar calendar was hot in the past, which was caused by the poor living habits of the ancients. It was not as hot as it is now. And air-condition after making love, it's too hot to sweat, and its resistance drops. Most of the time, I didn't pay attention. I took a cold bath directly, and the hot and cold alternated too fast, which hurt my health. On the other hand, as long as I deal with too much sex scientifically, nothing will happen in May if you just look for the so-called nine-poison nature to love me. If you don't control yourself, too much sex will be hurt at any time.