Smoking's bad for your health，but exactly how does quitting make life better?

　　1.

　　Stopping smoking has been found to slow facial ageing and delay the appearance of wrinkles.The skin of a non­smoker gets more nutrients，including oxygen，and can reverse the sallow，lined complexion that smokers often have.

　　2.

　　People breathe more easily and cough less when they give up smoking because their lung capacity improves by up to 10% within nine months.In your 20s and 30s，the effect of smoking on your lung capacity may not be noticeable until you go for a run，but lung capacity naturally diminishes with age.In later years，having maximum lung capacity can mean the difference between having an active，healthy old age and wheezing when going for a walk or climbing the stairs.

　　3.

　　Half of all long­term smokers die early from smoking­related diseases，including heart disease，lung cancer and chronic bronchitis.Men who quit smoking by 30 add 10 years to their life.People who kick the habit at 60 add three years to their life.In other words，it's never too late to benefit from stopping.Quitting not only adds years to your life，but it also greatly improves the chance of a disease­free，mobile，happier old age.

　　4.

　　Scientific studies show that people's stress levels are lower after they stop smoking.Nicotine addiction makes smokers stressed from the “withdrawal” between cigarettes.The pleasant feeling of satisfying that craving is only temporary and is not a real cure for stress.Also，the improved levels of oxygen in the body mean that ex­smokers can concentrate better and have increased mental well­being.

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