Hypertension — or high blood pressure — often develops without noticeable symptoms, quietly increasing the risk of heart disease, stroke, and other serious health complications. And in South Africa, it is far more common than many realise.
Recent screening data suggests that nearly 30% of South African adults have hypertension. Even more concerning is that among younger adults, over 15% are already affected. Yet awareness remains dangerously low — with just over half of those living with the condition knowing they have it.
That gap between prevalence and awareness is where the real danger lies.
“Hypertension doesn’t announce itself,” says Luvuyo Maloka from Unu Health. “For many people, the first sign is a serious health event — and by then, the condition has already caused significant damage.”
Part of the problem is perception. High blood pressure is still widely seen as an “older person’s disease”, something to worry about later in life. But changing lifestyles, increased stress, poor diet, and reduced physical activity are driving earlier onset — often without people recognising the risk.
At the same time, access barriers continue to play a role. For many South Africans, checking blood pressure or following up on abnormal readings requires time off work, long queues at clinics, or out-of-pocket costs. As a result, routine monitoring is often delayed — or avoided altogether.
There is also a deeper behavioural challenge: when there are no symptoms, there is little urgency.
But that is exactly what makes hypertension so dangerous.
“Knowing your numbers is one of the simplest but most powerful things you can do for your health,” Maloka explains. “It’s the difference between managing a condition early and facing a much more serious outcome later.”
Encouragingly, there is a growing shift toward more proactive healthcare. Digital platforms and remote consultation services are making it easier for people to engage with healthcare providers, ask questions, and take the first steps toward understanding their health — without the traditional barriers. Access to pathology services and routine screening is also becoming more integrated into these models, allowing for earlier detection and ongoing monitoring. This shift is particularly important in a country like South Africa, where the burden of chronic disease continues to rise alongside an already stretched healthcare system. By identifying and managing conditions like hypertension earlier, not only are personal outcomes improved — but pressure on clinics and hospitals is reduced. Still, awareness remains the first hurdle.
Prevention doesn’t start with treatment — it starts with information. Understanding risk factors, checking blood pressure regularly, and seeking guidance when something seems off are all small steps that can have life-changing consequences.
Because when it comes to hypertension, what you don’t know really can hurt you.
And sometimes, the most important health decision you make is simply taking the time to find out.
Visit Unu Health’s free Wellness Wheel on their website to monitor your health and notice when problems arise – www.unuhealth.org
