Task: Question Answering
Input (English): Positives ; In brief . My smoking is fast approaching extinction . I had a brief interlude while in Brisbane 4 weeks ago , and I choked down one at Kitty's shindig last weekend . Cravings are no longer there , less puffed during exercise , my lungs feel ..... big ..... and i'm feeling pretty damn good . Ninja training is going well . Floored 6 foot Ian rather smoothly during end of class demo . 
Question: Why is the writer feeling pretty damn good ?
Output (English): Because they are experiencing the effects of reducing smoking .