REPLY TO -These two research and statistical biases if not recorded correctly can skew the graph resulting in incorrect results. According to the authors Ranganathan et al., 2024 explains in the article the importance of understanding what and how to use validity and reliability. These two differ are used for accuracy and consistency of a research tool and need to be used correctly. The simplest form of validity is face validity, which, as the name suggests, is based on the appearance, format, and layout of the questionnaire. Are items in the questionnaire presented in such a way that they will give us the information that we are looking for? (Ranganathan et al., 2024). On the other hand, reliability. The authors Ranganathan et al., explain The same test is administered to the same set of individuals with a set time interval between tests and represents the extent to which responses correlate with each other. This time interval is critical as the individual's status should not have changed over this period, but the interval should not be too short so that respondents merely remember and repeat their previous responses (Ranganathan et al., 2024). In conclusion, based on this cohort analysis, smoking is associates with a higher death risk. Smoking programs that make the community aware of the alarming results must be designed. Quit smoking support programs and counseling to help support citizens