The main thing is that you can't get the sun. Older people will say that the sun is not enough. As long as you bask in the sun, it's nothing.
Actually, it doesn't matter if you want to live. Ventilation, don't raise fish, strengthen exercise at ordinary times, or hang that kind of waist gourd on the bedside. Geomantic omen theory is the unity of heaven and earth, and everything is people-oriented.