Coffee Consumption Linked to Slower Ageing in Individuals with Severe Mental Illness

A recent study conducted by researchers at King’s College London has found that consuming three to four cups of coffee daily may help slow biological ageing in individuals with severe mental illnesses, such as schizophrenia and major depressive disorder. The study, published in the MJ Mental Health Journal, involved 436 participants who reported their daily coffee intake. The researchers measured telomere lengths—protective caps on chromosomes that shorten with age—using blood samples from the participants. The findings indicate that those who consumed three to four cups of coffee had the longest telomeres, while those who drank five or more cups experienced a decrease in telomere length.

The Independent

The study highlights a significant health concern, as individuals with severe mental illnesses typically have a life expectancy that is 15 years shorter than the general population. Vid Mlakar, a co-author of the study, noted, “Our study shows that up to four cups of coffee per day is linked to longer telomeres among people with bipolar disorder and schizophrenia. This is comparable to a biological age of five years younger than non-coffee drinkers.” The research suggests that moderate coffee consumption may offer a protective effect against age-related diseases in this vulnerable population.

The Independent

Despite the potential health benefits of coffee, rising prices may pose a challenge for consumers. As of September 2023, the average price of a pound of ground coffee reached $9.14, marking a 41% increase compared to the previous year. Additionally, U.S. coffee production is limited, with few regions outside of Hawaii and Puerto Rico able to grow coffee beans. The situation has been exacerbated by President Donald Trump’s tariffs on Brazil, which supplies approximately 30% of the U.S. coffee market. These tariffs have led to producers withholding shipments, further impacting availability and cost.

The Independent

While the study presents promising findings, it has faced scrutiny regarding its methodology. Critics point out that the research did not specify the type of coffee consumed or the caffeine concentration in each cup, which could influence the results. Furthermore, some experts caution against over-reliance on coffee as a health intervention without considering other lifestyle factors that contribute to longevity.

The Independent

The research team emphasized the importance of their findings, particularly in light of the shortened life expectancy among individuals with severe mental illnesses. They advocate for further studies to explore the relationship between coffee consumption and health outcomes in this demographic.

The Independent

“Our study shows that up to four cups of coffee per day is linked to longer telomeres among people with bipolar disorder and schizophrenia.” — Vid Mlakar, Study Co-Author

The Independent

Future research is anticipated to delve deeper into the specific types of coffee and their respective impacts on health, as well as the broader implications of coffee consumption in relation to mental health and ageing.

The Independent