Up to 45% of Dementia Risk Can Be Prevented or Delayed, Says WHO

For a long time the conversation around dementia was pretty grim – it was often framed as an inevitable part of getting older, a cruel twist of fate you either avoided or didn't avoid. But the latest update from the World Health Organisation is a real game changer: it points to the fact that nearly 45% of dementia cases could in fact be prevented or delayed by things we can affect.

The “Hidden” Ingredients

It’s not just doing crossword puzzles or eating certain foods. There are 14 “modifiable” risk factors identified by the WHO – things that, if addressed early, can make a huge difference to your brain health decades later.

A couple of the big ones that may surprise you:

Hearing & Vision Loss: They aren’t just minor inconveniences. When you lose your senses, you starve your brain of necessary stimulation. One of the best ways to keep your brain “plugged in” is to get your hearing or vision checked and use aids if you need them.

Heart Health. What’s good for your heart is almost always good for your brain. Controlling your blood pressure and cholesterol levels in the middle years can help protect your cognitive functions.

Mental Wellbeing: Social isolation and untreated depression are big warning signs. Maintaining contact with loved ones and getting support for your mental health is just as important as physical exercise.

The Basics: The “usual” suspects – smoking, too much alcohol, too little activity, and bad sleep – all play a big role.

Why You Should Be Hopeful

What matters isn’t the list of risks, but the shift in perspective. It tells us that our brains are not just static organs that decline on a fixed schedule. They’re tough, and they react to how we deal with them.

Consider it building “cognitive reserve". Whenever you go for a walk, get a good night's sleep or have a meaningful conversation with a friend, you're essentially laying down extra insulation for your brain. You’re not just “staying healthy"; you’re actually saving future you.

A Soft Approach

If a list of 14 things is too much to read, don’t let it be. Nobody lives a life that perfectly ticks all of those boxes. It's not about being perfect; it's about being purposeful. Even just picking one or two things to focus on, such as finally scheduling that eye exam you’ve been putting off or committing to a 20-minute walk each day, is a win.

Ageing is a natural part of life, but we have more control over the quality of our later years than we ever imagined.