In the early 1900s, cigarettes were living their golden years – something which millions of lungs regretted. But you can't charge the smoking industry of not being creative. Back in the day, manufactures used to insert stiffening cards into their paper cigarette packs, to make them sturdier and last more; not long after that, companies started printing all sorts of quotes, trivia, artwork, and… life hacks.

　　20世纪初期，香烟正处于黄金年代，上百万人为他们的肺感到懊悔。但你不能控告香烟行业没有创造性。当时，厂商习惯在香烟纸包装里插入硬卡片，使包装更坚固、使用时间更长。不久之后，各个公司开始在硬卡片上印刷各种语录、冷知识、插图……以及生活小窍门。

　　Here are some of our favorites:

　　这里是我们最喜欢的一些小窍门：

　　How to increase lung power

　　如何增加肺活量

　　Stand erect on the balls of your feet and with the head held well back. Then inhale deeply until the lungs are fully inflated, gradually exhale, allowing the chest to sink first, followed by the lungs. Repeat exercise several times both morning and evening.

　　前脚掌着地直立站好，头部后仰。然后吸气，直到肺部充满空气，之后慢慢呼气，首先让胸部下沉，然后是肺部。早上和晚上都重复练习几次。