# Your daily coffee habit may affect your brain and mood in unexpected ways, study finds

- URL: https://talkfuse.com/story/your-daily-coffee-habit-may-affect-your-brain-and-mood-in-unexpected-ways-study-finds/
- Published: 2026-10-31T15:15:30+00:00
- Updated: 2026-10-31T16:49:49+00:00
- Original publisher: Fox News (publisher lean: Far right)
- Original article: https://www.foxnews.com/food-drink/daily-coffee-habit-affect-brain-mood-unexpected-ways-study-finds
- Topics: Health, Mental Health, Research, Science, World

## Key points

- Both coffee types were linked to mood and gut changes.
- Caffeinated coffee was associated with less anxiety and better attention scores.
- The small study cannot show coffee caused lasting benefits.

## Summary

A small study from University College Cork found that caffeinated and decaffeinated coffee were associated with changes in gut microbes, mood and some cognitive test results. The findings suggest coffee may affect people in ways beyond caffeine, but they do not show that gut changes caused the mood or cognitive differences.

The study involved 62 healthy adults, including 31 regular coffee drinkers who paused coffee for two weeks before resuming caffeinated or decaf coffee for three weeks. Both groups reported lower stress, depression and impulsivity; the caffeinated group also reported less anxiety and improved on an attention test, while the decaf group improved on an episodic memory test. Researchers and an outside psychologist cautioned that the small sample, repeated testing and other factors limit conclusions, and that test gains do not establish lasting real-world benefits or treatment for depression.

---
Summarised by TalkFuse (https://talkfuse.com/). Quote the original publisher for the reporting and link this page for the summary and discussion.