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WorldUnhealthy heart aged 36 could lead to premature brain shrinkage

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Unhealthy heart aged 36 could lead to premature brain shrinkage

People who have an unhealthy heart at the age of 36 could see their brain shrink earlier, new research has found.

A study by University College London (UCL) found poor cardiovascular health could lead to a higher brain age later in life.

Men tend to have older brains than women of the same age, the data showed

Participants were all of a similar age – but there was a “very wide variation” in how old the computer model predicted their brains to be.

The research could be an important indicator for people at risk of cognitive decline or other brain-related concerns.

Lead author of the study, Professor Jonathan Schott, UCL Dementia Research Centre, Queen Square Institute of Neurology, said: “We hope that this technique could one day be a useful tool for identifying people at risk of accelerated aging, so that they may be offered early, targeted prevention strategies to improve their brain health.”

An established MRI-based model was used to estimate the brain age of people who took part in the Insight 46 study, funded by the charity Alzheimer’s Research UK.

Subjects took part throughout their entire lives – allowing scientists to cross-reference their brain ages to various other factors.

The participants were all aged between 69 and 72 – but their brain ages varied from 46 to 93.

People with worse cardiovascular health at the age of 36 or 69 had poorer brain health.

People with worse cardiovascular health at the age of 36 or 69 had poorer brain health.

Dr. Sarah Imarisio, head of research at Alzheimer’s Research UK, hailed the study for helping to develop a greater understanding of the “complex relationship” between different factors which influence brain health.

“Using machine learning, researchers in this study have uncovered yet more evidence that poorer heart health in midlife is linked to greater brain shrinkage in later life.

“We are incredibly grateful to the dedicated group of individuals who have contributed to research their entire lives making this work possible.”

Source: Skynews

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