Home, what is your home? Home is the place closest to your heart; home is the eternal concern of your heart; home is the harbor when you encounter storms; the home is your resting space, so the health of the home is very important. 1, too moist toilet easy to get sick wet toilet easily… Read More »
Some people have good teeth, but their teeth gradually turn yellow or dark as they age. Unknown so! Some people have yellow teeth or tetracyclines, dental fluorosis, etc., so look at the cause of tooth discoloration. 1, physiological tooth color change: Human teeth with age and long-term use, there will gradually change color slightly. Just… Read More »