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. Keeping active is critical but smoking seriously affects the ability to do many sports. Sex and food are the stuff of life to many men. If you stop smoking you can enjoy both for longer.