He still knows his route by heart, handles his car like he did at 30… and yet, a doubt crosses your mind. What if driving becomes a risk for him – or for others? After 70, certain natural changes in the body can compromise safety behind the wheel. What are the signs to look out for? And how do you broach this sensitive subject without causing offense? Here’s everything you need to know to stay behind the wheel… safely.

Vision: what the eyes can no longer see so well

Eyesight is a bit like the brain’s GPS while driving. And with age, the screen can become blurry. Cataracts, glaucoma, macular degeneration… These somewhat technical names refer to common eye disorders after age 70. The result: signs are harder to read, contrasts disappear, and headlights at night are as blinding as movie spotlights.

To do:

An annual eye exam is essential. If you have any doubts, updating your glasses prescription or restricting your driving to daytime hours may be enough. But sometimes, it’s better to leave your keys behind… and take a good taxi for peace of mind.

Memory and reflexes: when the brain slows down a little

Forgetting your route? Reacting too slowly to an amber light? These aren’t always simple oversights. Cognitive aging can lead to memory loss, difficulty making quick decisions, and even confusion on the road.

What you need to know:

Alzheimer’s disease or other forms of cognitive impairment can reduce the ability to drive safely. It’s best to discuss this openly with your doctor. There are simple tests available to assess reflexes and concentration.

Heart and circulation: beware of unexpected health problems

A slight, fleeting dizziness… that occurs while driving? Certain cardiovascular conditions such as heart rhythm disorders or hypertension can cause dizziness, shortness of breath or even fainting.

What helps:

Regular checkups, a healthy lifestyle, and appropriate treatments. And above all: learn to listen to your body. If you’re not feeling 100%, leave the car in the garage, without guilt.

Diabetes: When blood sugar levels make an appearance in the driver’s seat

It’s not something we necessarily think about, but an episode of hypoglycemia can lead to vision problems, difficulty concentrating… or even loss of consciousness. And it can happen very quickly.

The good habit:

Always check your blood sugar before driving, have a snack on hand, and inform your loved ones if you feel faint.

Reduced mobility: moving is (also) safety

Turning the steering wheel, pressing the pedals, checking blind spots… Driving requires fine coordination. However, arthritis, joint pain, or conditions like Parkinson’s disease can limit movement and slow reactions.

Useful options:

Vehicle adaptations exist (softer steering wheel, automatic transmission, etc.), as do rehabilitation or physiotherapy sessions to maintain mobility. But if movements become truly difficult, it may be time to rethink your mobility.

Medications: These side effects that cloud the senses

Drowsiness, dizziness, decreased alertness… Some treatments, even common ones, can impair the ability to drive, especially if they are combined with each other.

The right reflex:

Read the instructions (yes, really!) and ask your pharmacist or doctor questions. A simple adjustment can sometimes make all the difference.