" As the nighttime lows that don't get below 86 degrees, which is kind of the average skin temperature to humans, the body can't have a chance to cool back down." So why does this happen in cities?

“由于夜间最低温度不会低于 86 度，这是人类的平均皮肤温度， 身体没有机会冷却下来。 ” 那么为什么这种情况会发生在城市呢？