Regular coffee or tea consumption may be linked to a lower risk of dementia, according to US research.

In a long-term study, scientists gathered data from more than 130,000 participants over 40 years, monitoring coffee and tea habits alongside cognitive health.

Overall, moderate consumption showed the strongest connection to a lower dementia risk. The lowest risk was seen in people who drank about two to three cups of caffeinated coffee per day. However, drinking more than moderate amounts did not appear to provide additional benefits.

In contrast, decaffeinated coffee showed no clear link to reduced dementia risk.

But the researchers emphasized that the findings show association, not proof that caffeine directly prevents dementia.

Coffee and tea contain caffeine and antioxidants that may help reduce inflammation and other compounds in coffee and tea may tamp down oxidative stress, which causes cellular damage.

Still, experts stress that healthy habits like exercise, balanced nutrition and good sleep remain most important for long-term brain health.

📸:dpa