Does Strength Training Help Your Brain and Memory?

By Kristen Nielsen, Founder & Senior Fitness Specialist

· Updated · Brain & Body · 2 minute read

A smiling older woman with short gray hair and glasses lifting orange dumbbells while sitting cross-legged on a yoga mat at home
lift a little…
A cartoon brain with arms and legs lifting a heavy barbell overhead
…brain gains

Part of our guide: Exercise for Brain Health After 60

Key takeaways

  • Yes. Strength training helps your brain as well as your muscles, and studies link it to better memory, attention and decision-making in older adults.
  • When you strength train, your body releases BDNF, a protein that helps grow new brain cells and strengthen connections.
  • You don't need a gym or heavy weights; a short circuit of sit-to-stands, overhead presses, marching and wall push-ups 2–3 times a week is a good start.

Yes, strength training helps your brain and memory, not just your muscles. It's one of my favorite forms of exercise for brain health, and research in older adults links it to better memory, attention, and decision-making.

If you've ever picked up a dumbbell and thought, "This is just for my arms or legs," think again. It turns out, your brain is one of the biggest winners when you add strength training to your weekly routine — especially as you age.

What Does Research Show About Strength Training and the Brain?

A growing number of studies show that resistance training (like lifting weights or using resistance bands) doesn't just preserve muscle — it actually stimulates brain function in some powerful ways:

  • Improved memory and executive function. A 2023 study in the Journal of Alzheimer's Disease found that older adults who did strength training 2–3 times per week showed better memory, attention, and decision-making skills than those who didn't.
  • Healthier brain structure. A 12-month Canadian trial (published in 2010 and 2015) showed that women aged 65 to 75 who did resistance training twice a week improved their attention and decision-making, and had slower growth of white-matter lesions (small areas of damage in the brain's wiring). That's a big deal, especially since these changes are linked to cognitive decline.
  • Better blood flow to the brain. Lifting weights improves cardiovascular health too — which means better oxygen and nutrient delivery to your brain tissue. That helps everything from mental clarity to mood.

How Does Strength Training Help Your Brain?

When you strength train, your body releases BDNF (brain-derived neurotrophic factor) — a protein often called "Miracle-Gro for the brain." BDNF helps grow new brain cells and strengthens existing neural connections. That's why you might feel more alert and clear-headed after a good workout.

Glowing pink nerve cells branching and connecting against a dark background

Do You Need Heavy Weights to Get the Brain Benefits?

No — you don't need to go to a gym or lift heavy. Simple exercises with resistance bands, light weights, or bodyweight can make a powerful impact.

If you're looking for ways to stay mentally sharp, physically capable, and independent into your 70s, 80s, and beyond — strength training is your secret weapon.

Try This Brain-Boosting Strength Mini-Circuit

Brain-Boosting Strength Mini-Circuit (Exercise Snack) — do 1 round, 2–3 times a week:

  • Chair Sit-to-Stands (10 reps; the chair stand test shows how your legs measure up)
  • Overhead Press with Weights or Cans (10 reps)
  • Marching in Place with Arm Swings (30 seconds)
  • Wall Pushups (10 reps)

Challenge your brain: Count backwards by 3s while marching, or say a city name that starts with each letter of the alphabet.

A laughing older woman with short blonde hair giving a thumbs-up while holding a pink resistance band

Your body and brain are designed to move and grow — no matter your age. It's never too late to start building a foundation for sharper thinking, stronger bones, and a longer, more independent life.

If you would like help developing a program that will strengthen your brain, in-home personal training is one option, or reach out for ideas! I'd love to help.

Kristen

Try the recipe: This coconut avocado pineapple smoothie is creamy, tropical and sneakily healthy — get the recipe.

Sources

  1. Northey JM, Cherbuin N, Pumpa KL, Smee DJ, Rattray B. Exercise interventions for cognitive function in adults older than 50: a systematic review with meta-analysis. Br J Sports Med. 2018;52(3):154-160. View source
  2. Liu-Ambrose T, Nagamatsu LS, Graf P, Beattie BL, Ashe MC, Handy TC. Resistance training and executive functions: a 12-month randomized controlled trial. Arch Intern Med. 2010;170(2):170-178. View source
  3. Bolandzadeh N, Tam R, Handy TC, et al. Resistance training and white matter lesion progression in older women: exploratory analysis of a 12-month randomized controlled trial. J Am Geriatr Soc. 2015;63(10):2052-2060. View source
  4. Marinus N, Hansen D, Feys P, Meesen R, Timmermans A, Spildooren J. The impact of different types of exercise training on peripheral blood brain-derived neurotrophic factor concentrations in older adults: a meta-analysis. Sports Med. 2019;49(10):1529-1546. View source
  5. Erickson KI, Voss MW, Prakash RS, et al. Exercise training increases size of hippocampus and improves memory. Proc Natl Acad Sci U S A. 2011;108(7):3017-3022. View source

This article is for general education and isn't medical advice. Please talk with your doctor before starting a new exercise, nutrition or supplement routine. See our health disclaimer.

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Coconut Avocado Pineapple Smoothie

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Kristen Nielsen, Founder of TogetherWON

About the author

Kristen Nielsen

Kristen founded TogetherWON after watching what strength training could do for older adults — including her own grandparents. She's an ACE Certified Personal Trainer with 10+ years in functional aging, a University of Central Florida graduate, and a former Division I swimmer and track & field athlete.

Senior Fitness Specialist · Functional Aging Specialist · Parkinson's Disease Specialist · Brain Health Trainer · Corrective Exercise Specialist

Verify Kristen's ACE certification

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