Why preventive health matters

Preventive health is everything you do before there is a problem: knowing your numbers, keeping screenings up to date, looking after everyday habits and talking to your doctor regularly — even when you feel well.

It is not about hunting for diseases or living worried. It is about routine: small gestures, repeated over the years, that give you and your doctor the information needed to decide calmly and in good time.

According to the World Health Organization, noncommunicable diseases — cardiovascular disease, cancer, chronic respiratory disease and diabetes — cause around 74% of deaths worldwide, roughly 41 million per year.

Many of these conditions progress without symptoms. The WHO estimates that around 1 in 3 adults lives with hypertension — and that about half of them do not know it, because high blood pressure rarely makes itself felt.

In Portugal, the National Statistics Institute (INE) reports that circulatory-system diseases remain the leading cause of death, responsible for around 1 in every 4 deaths.

The good news is solid: according to the WHO, up to 80% of premature heart disease, stroke and type-2 diabetes can be prevented through healthy habits and regular follow-up.

The Diabetes Prevention Program, a landmark CDC/NIH study in the United States, showed that at-risk people who changed their lifestyle reduced their chances of developing type-2 diabetes by 58% — a larger effect than the medication studied.

Being proactive does not mean staying on constant alert or turning every bodily signal into a worry. It means the opposite: building a simple routine that lets you think less about your health day to day, because you know you are being followed.

Checking your blood pressure now and then, doing the tests your doctor recommends, keeping the screenings appropriate for your age — small gestures with a compound effect over decades.

Prevention always ends in the same place: a conversation with your doctor. They know your history, interpret your values and decide what makes sense to monitor, request or adjust.

Arriving at that conversation with your information organised — habits, family history, questions — makes the appointment more useful for you and for the person following you. That is the spirit of preventive health: prepare, talk, decide together.