Quote:
Originally Posted by
Kent Money 
Swimming also has the same effect, and may help your lung capacity because of the necessity to hold your breath.
One caveat: be careful about where you are swimming. If it's a heavily chlorinated indoor pool you are actually damaging your lungs significantly at the same time as you may be accomplishing anything positive: "Chlorine byproducts found in swimming pools are linked to higher incidences of asthma, lung damage, stillbirths, miscarriages and bladder cancer, according to credible research conducted in the U.S., Canada, Norway, Australia and Belgium. One researcher noted that 1
0-year-old children spending an average of 1.8 hours per week in an indoor swimming pool environment suffered lung damage she would expect to see in an adult smoker."
