you might be surprised to learn that smoking actually causes you to look much older than your peers. In fact, heavy cigarette smokers are 4.7 times more likely to be wrinkled than nonsmokers their age.
口腔健康不容小觑，但我们却常常容易忽略了它的重要性。一些口腔或牙龈问题甚至可能导致心脏和糖尿疾病。那我们在清洁口腔时最重要的工具 - - 牙刷， 又该如何选择呢？
Ultra soft, soft, medium, hard. Charcoal bristles, green tea bristles, extra bristles. Choosing the right toothbrush can be a tough task for many. Too many options can give us a hard time picking.
