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The connection between obesity and hypertension (high blood pressure) is well established in the field of medicine, but why do the conditions often develop alongside each other? And how can knowing more about their relationship help people manage their risk of serious consequences to their health?
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Looking at the roots of the word ‘hypertension’ can help demystify the medical term used by healthcare professionals to describe high blood pressure. Linguistically speaking, the word can be broken down into two parts: ‘hyper’, meaning ‘over/above/beyond’ and ‘tension’, meaning ‘stretching’ or ‘strained’. With hypertension, your blood pressure is ‘above’ healthy levels, which in turn, causes strain on your blood vessels.
There are some conditions that can lead to the sudden development of high blood pressure, such as certain cancers or diseases that narrow the arteries that carry blood around your body. This is called secondary hypertension, as it comes second to another condition.
However, in the vast majority of cases (85-95%), there is no specific reason that can be pinpointed as the cause for high blood pressure. This is called primary or ‘essential’ hypertension, which typically develops slowly over many years.
Although there is no single identifiable cause for primary hypertension, in recent years, researchers have concluded that obesity likely accounts for up to three-quarters of these cases.
Obesity is thought to lead to increased blood pressure in a number of possible ways:
While both high blood pressure and obesity independently increase the risk of heart disease, heart attack and stroke, research suggests that the combination of the two conditions further exacerbates the risk.
Most people who have high blood pressure will not experience any symptoms, even if their levels could be considered dangerously high. So if you live with obesity or any other risk factors for high blood pressure, having your levels measured at least once a year by a healthcare professional is an important part of your overall care.
In most countries, your family doctor can check your blood pressure. In some countries, pharmacies also have blood pressure testing machines to check your blood pressure in store.
Knowing if you have high blood pressure is important to take steps to manage the condition and work towards lowering your overall risk of heart disease, heart attack or stroke, in consultation with your healthcare team.
While there is no ‘cure’ for high blood pressure, there are many widely available medicines for it, and adopting healthier lifestyle habits (e.g. not smoking, exercising and eating a balanced diet), can help and prevent high blood pressure.
If you or a loved one struggles with their weight, it doesn’t mean high blood pressure is inevitable, but it is best to regularly measure your levels with a healthcare professional, to support any additional steps to look after your health.
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