Hypertension is defined as the major risk of any stroke and heart disease. It is also defined as high blood pressure (myMVC 2006). In order to have a normal blood pressure, it is considered that a systolic blood pressure (the top number) must be below 120 and diastolic number (the bottom number) must be below 80. The top number is the measurement of the blood’s force against the artery walls when the heart is beating. While, the bottom number is the pressure between beats. (Lawson 2003). However, blood pressures above 140 over 90 are considered high. (ScienceDaily 2012). According to the High Blood Pressure Research Council of Australia (2018), the definition of hypertension is usually used by doctors to decide whether the patients need any assistance or help for medical treatment in order to prevent high blood pressure. Also, there are 30% of Australian adults that afflicted by high blood pressure or hypertension. Therefore, this can lead to any heart disease, stroke or kidney disease (Heart Foundation 2018). Hence, in this report, hypertension damages the brain functions in adults ages between 35 to 60 will be explored by the use of primary and secondary sources.