Final answer:
High blood pressure, or hypertension, can have various causes. The majority of cases are due to a combination of genetic and lifestyle factors including excess salt and alcohol consumption. A smaller percentage of cases are caused by underlying conditions such as chronic kidney disease or an endocrine disorder.
Step-by-step explanation:
High blood pressure, also known as hypertension, can have various causes. The majority of cases, around 90%, are classified as primary hypertension, which is a combination of genetic and lifestyle factors. This can include genes that have a small effect on blood pressure as well as lifestyle factors like excess salt and alcohol consumption. The remaining 10% of cases are classified as secondary hypertension, which can be caused by chronic kidney disease or an endocrine disorder.