Hypertension is a major global health disorder affecting
about 972 million adult populations in year 2000.This number
is expected to grow to 1.56 billion by the year 2025 [26].
Prevalence of hypertension in most developing countries
is comparable to the developed countries [27, 28]. Hypertension
is defined when a patient has an elevated systolic
BP greater than 140mmHg and/or diastolic BP greater than
90mmHg [29]. A patient with systolic BP ranging between
120mmHg and 139mmHg, and/or diastolic BP of 80mmHg
to 89mmHg, is categorized as prehypertensive. Patients at
this stage have the tendency to develop hypertension; hence
medical approaches and life style need to be taken care of [29].