Drinking 3+ Cups of Coffee Daily May Help Older Women Retain Memory

If you’ve ever worried that your memory isn’t what it used to be, especially as you age, you’re not alone. For many older women, forgetfulness or slower recall can be a real concern—and one that may have a surprising daily solution.

The short answer? Drinking three or more cups of coffee or tea per day may help older women retain their memory better than those who drink just one cup. That’s according to a major study tracking memory performance over several years.

What the Study Found

Researchers from France’s National Institute of Health and Medical Research (INSERM), led by Dr. Ritchie, conducted a long-term study involving around 7,000 older adults—both men and women—from three French cities: Bordeaux, Dijon, and Montpellier. Participants were given a series of cognitive tests, including specific assessments for word memory, and then retested two years later, with some followed up again at year four.

The key finding? Among older women, those who consumed three or more cups of coffee or tea daily had significantly smaller declines in their memory test scores compared to those who drank just one cup per day.

Why Memory Matters More With Age

Cognitive decline, including memory loss, becomes more common with age. For women, hormonal changes after menopause can also influence brain health and memory retention. While not all forgetfulness signals serious decline, maintaining verbal memory—like recalling a list of words—is a strong indicator of overall cognitive function.

This study focused specifically on word memory tasks because they are sensitive markers of cognitive aging. Slower declines in these tests suggest preserved mental sharpness.

How Coffee and Tea Might Help

While the study didn’t explore the exact mechanism, researchers believe that caffeine and other bioactive compounds in coffee and tea could play protective roles. Caffeine is known to influence brain regions tied to attention and memory. Other components, like antioxidants, may also reduce inflammation and support neuronal health.

It’s worth noting that both coffee and tea were grouped together due to their similar caffeine content and general effects, though individual responses can vary.

What Counts as a Cup?

The study didn’t specify exact serving sizes, but in most research contexts, one cup is considered around 8–10 ounces (240–300 ml), typically delivering roughly 80–100 mg of caffeine for coffee and 30–50 mg for tea. Drinking three or more such cups daily was associated with better memory outcomes in older women.

That said, the benefit was observed specifically in women—no similar protective effect was reported for older men in this dataset.

Frequently Asked Questions

Does drinking coffee or tea really help older women remember better?

Yes, according to the French study, older women who drank three or more cups of coffee or tea per day had less decline in memory test scores—especially word recall—over time compared to those who drank just one cup daily.

Why did the study focus only on older women?

The study tracked both older men and women, but the memory-protective effect of three or more cups per day was statistically significant only among older women. No similar benefit was observed in older men in this research.

What kind of memory was tested?

Participants took word memory tests—recalling lists of words—which are sensitive to age-related cognitive decline. These tests helped measure how well verbal memory was maintained over the years.

How many cups of coffee or tea are we talking about?

The benefit was seen in people who drank three or more cups per day. Each cup was likely around 8–10 ounces, with coffee providing roughly 80–100 mg and tea 30–50 mg of caffeine per cup.

Could too much caffeine be harmful?

This study didn’t examine negative effects of high caffeine intake, but generally, up to 400 mg of caffeine per day is considered safe for most adults. Always consult a doctor if you have specific health concerns.

Did the study find the same results for men?

No, the memory-retention benefit of drinking three or more cups daily was observed only in older women. Men in the study did not show the same association.

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