Boost your memory: The role of sleep and exercise in memory building

April 22, 2025
Getting good sleep and regular exercise can help with memory building. Photo: Getty Images.
Getting good sleep and regular exercise can help with memory building. Photo: Getty Images.

From tying your shoes and cooking dinner, to driving to work and reading a story to your kids, memory plays an important role.

“Memory informs us on how to adjust our behavior for current activities and events – where do you find food, don’t touch that because it’s hot, this person is a friend of mine,” said Dr. Brian Harrington, a family medicine physician in Steamboat Springs and a member of the medical staff at UCHealth Yampa Valley Medical Center. “Memory is crucial to survival.”

Memory basics 

The process of forming and storing memories involves four distinct activities: perceiving, encoding, retaining and retrieving. Various parts of the brain are involved in each stage.

“It’s a complex thing. You can remember a fact, an action, an emotional response,” Harrington said. “Injuries or diseases that affect certain parts of the brain can affect aspects of memory formation and retrieval.”

There are various types of memory. For instance, short-term memory holds information for a few seconds to a few minutes, like a phone number. Long-term memory can hold information for years, like where you went to school.

Memory is not static but can change over time. Even the process of retrieving memories can alter them.

“Some psychotherapy approaches have you retrieve memories and alter the memory, so it no longer triggers a debilitating emotional response,” Harrington said.

Better memory building

While people form memories naturally, they can also work on becoming better at building and retaining memories.

For instance, when more senses are involved in perceiving an event, such as smell, taste and touch, you may be more likely to remember the details. Emotional connection and personal significance can add weight to memories as well.

When trying to remember something, give it your full attention and remove distractions, especially phones.

“Our world has more distractions than ever,” Harrington said. “When trying to learn something, we should not be engaging with our phones.”

Tricks such as visualizations, breaking the information up into small chunks, using a mnemonic device and singing may all help solidify a memory.

Don’t forget to repeat the material often.

“I often say repetition is the key to adult learning,” Harrington said.

It’s also important to stay organized. “Disorganization leads to difficulty remembering things,” Harrington said. “When you’re organized, the more things are in patterns and the less random it is, the more likely you are to remember.”

Lifestyle factors such as poor sleep affect memory

Overall health plays a big role in memory. In fact, one of the highest risk factors for developing dementia later in life is chronic sleep trouble.

“I’m struck that very often at the top of the list for improving memory are things like daily exercise and good sleep,” Harrington said.

Social interaction is strongly linked to better cognition and memory, and even diet may play a role.

“There are theories that certain foods might be helpful with memory, for instance, the flavonoids that give color to fruits and vegetables,” Harrington said.

Drugs, smoking and regular alcohol use can all be detrimental for memory, while chronic health problems may also have a negative impact.

“With vascular disease, the same process affects arteries in the brain and may affect brain health as well,” Harrington said. “Taking care of issues such as hypertension, cholesterol and diabetes matters for memory in the long term.”

While stress can harm memory, practices such as meditation and prayer may help by decreasing stress, increasing attention and improving brain health.

Your brain: Use it or lose it

As people age, the brain starts to shrink slightly, but that doesn’t mean older adults lose cognition. Age alone doesn’t determine memory health.

“For a healthy person, their memory will remain really strong well into their seventies and beyond,” Harrington said. “Some studies show that certain 80-year-olds can perform as well as 20-year-olds.”

Learning a new language or skill, completing puzzles or other engaging tasks, and even travelling can help contribute to brain health.

“If you keep your brain active, stimulated and engaged in the world around you, there’s less decline in dendritic connections between cells,” Harrington said. “Like any other part of the body, if you don’t use it, you lose it.”

This story first appeared in the Steamboat Pilot.

 

 

About the author

Susan Cunningham lives in the Colorado Rocky Mountains with her husband and two daughters. She enjoys science nearly as much as writing: she’s traveled to the bottom of the ocean via submarine to observe life at hydrothermal vents, camped out on an island of birds to study tern behavior, and now spends time in an office writing and analyzing data. She blogs about writing and science at susancunninghambooks.com.