Fasli Jalal, professor of public health and rector of YARSI University, said the high number of smokers, especially among children and adolescents, was a national and global embarrassment for Indonesia
You might hear Oh, you didnt need to declare that, but thanks (thats a far better outcome than failing to declare something you should have)
All experiments were approved by the Ethics Committee of the Shahid Beheshti University of Medical Sciences (No.IR.SBMU.PHNS.REC.1400.189), and were performed according to their regulations and guidelines
Its not clear at this point whether and how much they can reduce the risk of lung cancer, but these healthy habits can certainly improve health overall.
If you are not sure what you want, you can do more research or consult with experts.