The damage caused by smoking to the cardiovascular system is significant, and while consistent and intense training can certainly improve lung function and endurance, there is a limit to how much can be reversed. The key factors that determine the extent of recovery are the duration and intensity of the training, as well as the severity and length of time the individual smoked.
When it comes to cycling endurance, the lungs and cardiovascular system are crucial components, and smoking damages both. The carbon monoxide found in cigarette smoke reduces the amount of oxygen that can be carried in the blood, while the tar and other chemicals irritate the lungs, leading to decreased lung function and reduced endurance.
While it is possible to improve lung function and endurance through training, former smokers may never reach the same level of performance as non-smokers. However, this should not discourage former smokers from pursuing their passion for cycling. Any improvement in endurance and lung function is a step in the right direction and can lead to a healthier and happier life.
It's worth noting that many professional cyclists have successfully overcome their smoking habits and achieved great success in the sport. But, it's also important to remember that everyone's body responds differently to training and recovery, so it's essential to listen to one's body and progress at a pace that feels safe and sustainable.
I encourage others to share their thoughts and experiences on this topic, as it's always beneficial to learn from one another. Remember, nobody is good enough for us, and we can always improve and learn more.