The study suggests – for women, at least – caffeine could be an ally in warding debilitating effects of dementia.
The results among a group of elderly women showed caffeine self-reported more than 261 mg per day was associated with a reduction of 36 percent in the risk of dementia more than 10 years of follow up. seven to eight. 12-ounce cans of cola
study’s lead author, Professor Ira Driscoll, University of Wisconsin-Milwaukee, in the United States, said “the growing evidence of caffeine consumption as a factor potentially protective against cognitive decline is exciting because caffeine is also an easily modifiable dietary factor with very few contraindications.
“what is unique about this study is that we had a unique opportunity precedents to examine the relationship between caffeine consumption and dementia incidence in a large and well-defined cohort prospectively studied women. “
Prof Driscoll and his research colleagues used data from 6,467, post-menopausal women living in community 65 years or older reported some level of caffeine consumption.
Its consumption was estimated from questions about coffee, tea and cola consumption, including frequency and portion size.
In 10 years or less follow up with annual assessments of cognitive function, 388 women were diagnosed with probable dementia or some form of cognitive impairment.
Those who consume above average amount of caffeine for the group – with an average consumption of 261 mg per day – were diagnosed at a lower rate than those who fell below average – with an average intake of 64 mg per day.
The researchers adjusted for risk factors such as hormone therapy, age, race, education, body mass index (BMI), the sleep quality, depression, hypertension, previous cardiovascular disease, diabetes, smoking and alcohol consumption.