Recently, I was on vacation and twice I experienced chest pain. Both times when it occurred I was not doing anything strenuous, actually, I was sitting. It felt like my chest was being squeezed in a ...
The images of heart and lungs will speak for themselves.
The same I would imagine, don't believe everything you see or hear, people are different, there was an old man in the paper he lived to 109 or something and he smoked for 90 years died of old age so um yeah,
Look at some top atheletes like Zidan smoking on the traning ground he didn't have an problems running the pitch, except for when he needed a cig so bad he headbutted that guy so he could have a fix :p hahah
A smoker's heart (depending on how long and how much the smoker smokes)...could look the same. OR, it could possibly be larger than a nonsmoker's heart. Why? Because it's having to work harder...pump harder to deliver oxygenated blood to the body. Just like with athletes, when the heart works harder, it gets bigger. After all, it's a muscle.
And, what happens when muscles get worked out? They get bigger. But in the case of a smoker, a bigger heart is not a good thing because it's not as efficient. The heart muscle becomes thickened and causes there to be less room in its chambers for blood so in order to circulate the needed amount of blood to the body, it has to beat faster and work harder. After time...it can wear out.