S. Vijaya A. Anandan Department of Mathematics, Annamalai University, Chidambaram 608002. India Network Biology ISSN 2220-8879 http://www.iaees.org/publications/journals/nb/online-version.asp 2022 12 1 26 31 International Academy of Ecology and Environmental Sciences Hong Kong 23 November 2021 30 November 2021 1 March 2022 GH Weibull distribution probability density function An extreme value distribution, the Weibull distribution is frequently used to model reliability, wind speed, survival, and other data. One of the main reasons for this is its flexibility. Weibull distribution can mimic various distributions like the normal or exponential. The two-parameter Weibull has a shape (alpha) and scale (beta) parameter. Hence, in the present study, we investigated the effect of sumatriptan on serum GH levels of 8 younger and 8 older normally cycling women using two parameter Weibull distribution. Here, we have employed the two parameter Weibull distribution to analyse the life time data and to interpret the plot. The result clearly indicates that decreases the sumatriptan on serum GH levels of 8 younger and 8 older normally cycling women. Further, it should be noted that the Effect of sumatriptan on serum GH levels of 8 younger and 8 older normally cycling women showed the decreased levels of probability density functions and the hazard and survival function has zero, suggesting that the regular exercise welfares the life span. http://www.iaees.org/publications/journals/nb/articles/2022-12(1)/Weibull-model-altered-neuroendocrine-control.pdf