If you want to enhance your intellectual ability as you get older, say goodbye to these 8 behaviors

A few years ago, I caught myself saying something I never thought I would: “I guess I’m just not as sharp as I used to be.”

It wasn’t true, of course—my brain was still fully capable.

The problem wasn’t my age; it was the habits I’d picked up along the way.

The more I looked into it, the more I realized how small, everyday behaviors were quietly working against me.

From multitasking to neglecting sleep, these habits weren’t just stealing my time—they were holding my brain back.

The good news? Letting go of these habits isn’t as hard as it seems.

And once you do, you might find your mental sharpness returning in ways that surprise you.

Let’s talk about eight behaviors worth saying goodbye to—your brain will thank you for it.

1) Unchecked multitasking

We live in a world that rewards multitasking.

Juggling numerous tasks may seem like a badge of honor, but it’s not doing your intellect any favors.

In fact, research shows that multitasking can negatively impact your brain health, decreasing your productivity and comprehension.

The issue here is the constant mental gear-shifting, which can wear out your cognitive muscles over time.

It’s like trying to run on a treadmill while juggling bowling balls – you’re bound to drop one eventually.

So if you’re serious about enhancing your intellectual ability as you age, start focusing on one task at a time.

Your brain will thank you for it, and so will your productivity levels.

And remember, it’s not about doing everything at once. It’s about doing each thing well.

2) Neglecting physical exercise

I used to think that intellectual growth was solely about mental exercises.

I’d spend countless hours reading and problem-solving, often at the expense of my physical health.

And then I read a study suggesting that regular physical exercise, particularly aerobic exercise, can significantly improve cognitive functions, particularly memory and attention.

The science is clear: moving your body isn’t just good for your muscles, it’s good for your brain too.

Exercise increases blood flow to the brain, which supports cognition.

So I started running. At first, it was tough.

But then I noticed something – not only was I feeling physically fitter, but mentally sharper too.

Now, I’m not saying you need to become a marathon runner.

But try to find some form of physical activity you enjoy and make it a part of your routine. Your brain will thank you for it.

3) Constant digital consumption

We live in a digital age.

Our phones, computers, and televisions provide us with endless streams of information.

But being constantly plugged in can be detrimental to our intellectual abilities.

A study from University College London found that high levels of screen time were associated with a decrease in cognitive function.

Participants who logged more than 3 hours of television per day performed worse on cognitive tests than their counterparts who watched less.

So, while it might be tempting to binge-watch your favorite show or mindlessly scroll through social media, remember that moderation is key.

Make time to unplug and give your brain a break – it’s one of the best ways to nurture your intellect as you age.

4) Avoiding new experiences

It’s easy to fall into a routine as we age. We find comfort in the familiar and often resist the unfamiliar.

But this resistance to new experiences can stifle our intellectual growth.

Stepping out of your comfort zone and trying new things stimulates the brain in unique ways.

It exposes you to different perspectives, fosters creativity and boosts your problem-solving skills.

Whether it’s learning a new language, trying a new cuisine, or even taking a different route to work – embracing novelty keeps your brain active and engaged.

So don’t shy away from change. Embrace it instead.

Your intellect will thrive when faced with the challenge of the unknown.

5) Neglecting relationships

Relationships are the heartbeats of our lives. They add color, depth and meaning to our world.

But did you know they can also play a significant role in our intellectual growth?

Connecting with others, especially those with different viewpoints and experiences, challenges our thinking.

It pushes us to question, reflect and grow.

But in the hustle and bustle of life, we sometimes forget the importance of nurturing these relationships.

We become isolated, focusing solely on our work or personal projects.

We are social creatures. Our brains thrive on interaction and connection.

By spending time with loved ones, engaging in meaningful conversations, or even just sharing a laugh, we stimulate our minds in ways that solitary activities can’t.

So make time for your relationships. It’s not just good for your heart, but for your intellect too.

6) Skipping sleep

I used to believe that sleep was a luxury I couldn’t afford.

With so much to do and so little time, burning the midnight oil seemed like the only option.

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But over time, my lack of sleep started affecting my cognitive abilities.

I found it harder to concentrate, remember information or even make simple decisions.

Research has shown that sleep is crucial for our brain health.

It’s during this time that our brain consolidates memories, clears out toxins and prepares for the next day.

Without enough sleep, our intellectual abilities can decline over time.

So, now, no matter how busy I am, I prioritize getting a good night’s sleep. It’s made a world of difference to my cognitive function and overall productivity.

7) Ignoring mental health

We often focus on physical health, but mental health is equally crucial, especially when it comes to intellectual abilities.

Stress, anxiety, and depression can significantly impact cognition, affecting memory and concentration.

Ignoring mental health issues won’t make them go away—instead, they can fester and worsen over time, taking a toll on your cognitive function.

It’s essential to seek help when you need it and practice good mental health habits regularly.

This could mean talking to a therapist, meditating, journaling, or engaging in other self-care practices that help maintain emotional balance.

A healthy mind is just as important as a healthy body for maintaining and enhancing intellectual ability as we age.

8) Lack of curiosity

If there’s one thing that truly fuels intellectual growth, it’s curiosity.

Curiosity is the spark that drives us to learn, explore, and understand the world around us.

Without curiosity, we can become stagnant in our thinking and learning.

We stop questioning, stop growing, and our intellectual abilities can plateau.

So keep asking questions. Keep exploring. Keep learning.

No matter how old you get, never lose your sense of curiosity. It’s the most powerful tool you have for enhancing your intellectual ability.

Final thoughts

If there’s one thing I’ve learned, it’s this: staying mentally sharp isn’t about fighting the clock—it’s about working with it.

The choices we make every day, no matter how small, shape the way our minds age.

Habits like skipping sleep, avoiding exercise, or clinging to the comfort of routine might feel harmless, but they quietly dull the edges of our intellect.

Letting go of them takes effort, sure, but the payoff? It’s worth every bit.

At the end of the day, curiosity and growth don’t have an expiration date.

Whether it’s learning something new, nurturing relationships, or simply making time for rest, each step you take strengthens your brain in ways you’ll feel for years to come.

Your age doesn’t define your intellect—your habits do. So why not start today?

You might just find your sharpest years are still ahead.