Drinking too much coffee can have a detrimental effect on the brain, a new study has found. Devin Avery / Unsplash
Drinking too much coffee can have a detrimental effect on the brain, a new study has found. Devin Avery / Unsplash
Drinking too much coffee can have a detrimental effect on the brain, a new study has found. Devin Avery / Unsplash
Drinking too much coffee can have a detrimental effect on the brain, a new study has found. Devin Avery / Unsplash

Drinking too much coffee can lead to dementia, stroke and brain shrinkage, study finds


Sophie Prideaux
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Many people rely on a cup of coffee to sharpen their brain ahead of a busy day, but a new study has found that drinking too much coffee can have a detrimental effect on the brain.

The study, carried out by the Australian Centre for Precision Health at the South Australian Health and Medical Research Institute, found that drinking six or more cups of coffee per day was linked to a 53 per cent increased risk of dementia, as well as significantly increasing the risk of a stroke.

Scientists used brain imaging to also establish that heavy coffee consumption was also associated with brain shrinkage.

The study, which was published in the journal Nutritional Neuroscience, was the largest of its kind to be carried out, based on 17,702 participants aged between 30 and 37.

“Coffee is among the most popular drinks in the world. Yet with global consumption being more than nine billion kilograms a year, it’s critical that we understand any potential health implications,” said Kitty Pham, a PhD candidate at the University of South Australia, who led the team of international researchers.

“This is the most extensive investigation into the connections between coffee, brain volume measurements, the risks of dementia, and the risks of stroke – it’s also the largest study to consider volumetric brain imaging data and a wide range of confounding factors.

“Accounting for all possible permutations, we consistently found that higher coffee consumption was significantly associated with reduced brain volume,” she said. “Essentially, drinking more than six cups of coffee a day may be putting you at risk of brain diseases such as dementia and stroke.”

Mercer, the investment consulting arm of US services company Marsh & McLennan, expects its wealth division to at least double its assets under management (AUM) in the Middle East as wealth in the region continues to grow despite economic headwinds, a company official said.

Mercer Wealth, which globally has $160 billion in AUM, plans to boost its AUM in the region to $2-$3bn in the next 2-3 years from the present $1bn, said Yasir AbuShaban, a Dubai-based principal with Mercer Wealth.

Within the next two to three years, we are looking at reaching $2 to $3 billion as a conservative estimate and we do see an opportunity to do so,” said Mr AbuShaban.

Mercer does not directly make investments, but allocates clients’ money they have discretion to, to professional asset managers. They also provide advice to clients.

“We have buying power. We can negotiate on their (client’s) behalf with asset managers to provide them lower fees than they otherwise would have to get on their own,” he added.

Mercer Wealth’s clients include sovereign wealth funds, family offices, and insurance companies among others.

From its office in Dubai, Mercer also looks after Africa, India and Turkey, where they also see opportunity for growth.

Wealth creation in Middle East and Africa (MEA) grew 8.5 per cent to $8.1 trillion last year from $7.5tn in 2015, higher than last year’s global average of 6 per cent and the second-highest growth in a region after Asia-Pacific which grew 9.9 per cent, according to consultancy Boston Consulting Group (BCG). In the region, where wealth grew just 1.9 per cent in 2015 compared with 2014, a pickup in oil prices has helped in wealth generation.

BCG is forecasting MEA wealth will rise to $12tn by 2021, growing at an annual average of 8 per cent.

Drivers of wealth generation in the region will be split evenly between new wealth creation and growth of performance of existing assets, according to BCG.

Another general trend in the region is clients’ looking for a comprehensive approach to investing, according to Mr AbuShaban.

“Institutional investors or some of the families are seeing a slowdown in the available capital they have to invest and in that sense they are looking at optimizing the way they manage their portfolios and making sure they are not investing haphazardly and different parts of their investment are working together,” said Mr AbuShaban.

Some clients also have a higher appetite for risk, given the low interest-rate environment that does not provide enough yield for some institutional investors. These clients are keen to invest in illiquid assets, such as private equity and infrastructure.

“What we have seen is a desire for higher returns in what has been a low-return environment specifically in various fixed income or bonds,” he said.

“In this environment, we have seen a de facto increase in the risk that clients are taking in things like illiquid investments, private equity investments, infrastructure and private debt, those kind of investments were higher illiquidity results in incrementally higher returns.”

The Abu Dhabi Investment Authority, one of the largest sovereign wealth funds, said in its 2016 report that has gradually increased its exposure in direct private equity and private credit transactions, mainly in Asian markets and especially in China and India. The authority’s private equity department focused on structured equities owing to “their defensive characteristics.”

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Updated: July 25, 2021, 2:20 PM