A Neurology Professor Says Many People Over 50 Still Do These 4 Brain-Damaging Habits

Last updated on Mar 12, 2026

Neruology professor notes brain-damaging habits. Rodrigo Rodrigues Wolf | Unsplash
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As you age into your 50s and 60s, your routine and habits impact your brain health in the long term, so you are unknowingly harming your brain health a little daily. Dr. Rudolph E. Tanzi, a professor of Neurology, blames these reckless routines that are harming your cognition and pushing you toward neurodegenerative diseases.

These everyday, brain-damaging habits are so normalized that they have now become the norm. It’s a way of life that is not only accepted but appreciated. Here are the four everyday habits that are hurting your cognition and memory.

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A neurology professor says many people over 50 still do these 4 brain-damaging habits:

1. Working more than 8 hours a day can damage your brain

working an 8 hours day is a brain damaging habit Marcus Aurelius / Pexels

It is the norm to work for at least 8 hours a day. There’s no denying that the pressure and workload of most jobs will have you put in at least 8 hours daily.

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Corporate has made it a norm that you can not get any job with less work time, but this extensive workday is killing your productivity and brain cells. You are not made for sitting and working 8 hours daily.

You need to work to add purpose to your life and to keep your brain sharp. But overworking and a sedentary life are poisoning your cognitive health little by little, daily.

Late-night calls, long repetitive meetings, and busy weekends cause huge burnouts that no vacation can cure. You need to lighten your everyday workload to improve your cognitive health. Here's what you can do:

  • Batch similar tasks and do them in one work session.
  • Take a 5-minute walking break every hour of sitting.
  • Spend more time in nature to get adequate sunlight.

Overworking quietly chips away at your ability to focus, retain information, and think clearly. As psychologist Dr. Sherrie Bourg Carter explained, "Burnout is a state of chronic stress that leads to exhaustion, detachment, feelings of ineffectiveness," which is exactly why lightening your daily workload is a brain health necessity.

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RELATED: 11 Everyday Habits That Can Damage Your Brain, According To Research

2. Staying socially withdrawn can damage your brain 

Crowds are a bane of my existence, so I refuse to get out of the house on weekends. I am highly introverted, and even the thought of a conversation with a stranger makes me wish I had a shell I could retreat into, Lucky turtles!

But this attitude will lead to poor cognitive health; you need to connect with other human beings regularly for optimal brain health. Isolation increases psychosocial stress associated with a higher risk of heart and neurological diseases.

Loneliness increases your risk of anxiety and depression, which can shrink your brain. So, protect your cognition by connecting with people regularly. Research has found that loneliness and social isolation are linked to reduced cognitive function across multiple domains in older adults, as well as a heightened risk of dementia.

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Dr. Tanzi says that you need to have meaningful interactions with people, so choose someone whom you care about and who cares about you too. Here's what you can do:

  • Plan regular phone calls with friends.
  • Make plans to do something fun and active with peers on weekends.
  • Try out a group class to find people with similar hobbies.

3. Engaging in excessive screen time can damage your brain

excessive screen time is a brain damaging habit Jayson Hinrichsen / Unsplash+

Your 8-hour workday creates another major problem that can lead to poor cognition. You sit and work in front of a screen for a third of the day, and then you relax by watching television or playing a video game.

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Both our work and relaxation are hacked by screens. But this mindless exposure to screens is messing with your sleep, which you desperately need for better cognition.

You need at least six hours of sleep every night to function well the next day. Even minor sleep deprivation can wreck your focus, alertness, and concentration. Dr. Tanzi advises going to bed an hour early rather than obsessing about sleep. Here's what you can do:

  • Rest your eyes by closing them for just two minutes.
  • Find new hobbies that don’t require staring at a screen.
  • Reduce blue light exposure one hour before sleep.

Clinical social worker Brock Hansen advises making the effort to connect with people even when you don't feel like it, pointing out that "healthy interaction with friends" is worth the work, and that real-world engagement is one of the most accessible ways to protect your cognitive health.

RELATED: 8 Things Smart People Stop Doing Once They Realize They’re Making Themselves Less Intelligent

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4. Pushing yourself non-stop can damage your brain

Another celebrated aspect of our modern life is hustle. The race to see who can achieve more and earn the most money is never-ending. This race is a hamster wheel that will take all your time and energy. It’s a black hole where your youth will be lost forever.

Hustling will add stress on top of a busy day job. Yes, multiple income sources are good, but you need to be realistic. You’ll need to hustle for a long time before you make a dime. So, do work that enriches your life and start a side hustle that has the potential to monetize a hobby.

A study in the journal Cells found that chronic stress and elevated cortisol increase vulnerability to Alzheimer's disease by accelerating the accumulation of the same proteins Dr. Tanzi has spent decades researching.

Dr. Tanzi recommends fighting stress with a calming mantra like, “I am alright now.” Here's what you can do:

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  • Start a small side hustle to develop your skills.
  • Set SMART goals that you can easily achieve.
  • Start a side hustle for fun.

It’s high time you need to change the norm and live a life that enriches your brain health. Save your cognition by breaking your patterns.

  • Overworking will drill all the good ideas out of your brain.
  • Sitting for long periods will wreck both your back and cognition.
  • Unregulated blue-light screen exposure will break your sleep cycle.
  • Chronic stress from juggling work and a side hustle will wreck your mental health.

So, stop these devious habits today for better brain health in the future.

RELATED: 6 'Normal' Habits That Can Slowly Ruin Nice People’s Lives

Khyati Jain is an editor and writer with expertise in health, fitness, lifestyle, and mental health.

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