Assalamu alaikum my dear friend

I am feeling very sad for your father as parents are greatest blessing of Allah almighty and the second worse thing that he died from the lungs disease as we know that a lungs are very sensitive and a little disease can effective very fastly.

As you mention your father was a very active person and he was a player of Kabaddi and of course he knew very well how to take care of their health and diet too.

Despite of all things diseas is a part of life I would love to know that if you have power you would like to eradicate the lung diseases as these are really sensitive part of our body and most of disease such as Long cancer and other respiratory disorder become the greatest source of deaths.

Good luck