It's never too late to stop - much of the damage that smoking does to the body can be reversed even after a life of cigarettes. Not smoking also puts off the development of many of the unpleasant changes of aging. What may be harder to mend is the damage to your relationship if you fall out over this important issue - you might want to think about help from a group like Relate if the battle gets out of hand, but smoking is a tough addiction to break, so try to remain sympathetic. Some of these conditions may be fatal, while others could do immense chronic damage to a person's health. Stop now and you will a live a longer and healthier life.
Heart attacks are a major risk for smokers.
If you stop, your risk of a heart attack drops to the same as a non-smoker within 3 years. Cancer is another major risk of smoking - but the risk drops every year after giving up. Smoking can affect fertility. If you plan to have children in the coming years, the sooner you stop the better. Enjoy sport more.