Have they not travelled in the land and seen the nature of the consequence for those who were before them, and they were mightier than these in power? Allah is not such that aught in the heavens or in the earth escapeth Him. Lo! He is the Wise, the Mighty.
Times are computed by method; your mosque's timetable governs the adhan. Every text carries its source and grade. Nothing here is a fatwa, a prediction, or a substitute for a doctor: your own scholar decides what is contested, and the tradition itself says the practice is alongside treatment, never instead of it.