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Tag: brain awareness week

Events, Partner organizations, Research, Science communication & public engagement

Counteracting cognitive decline & dementia

By Aideen Sullivan, University College Cork

Aideen Sullivan
Professor Aideen Sullivan (Credit: UCC, website)

Currently, there is much interest in the ageing brain and how people can take measures to counteract the decline in mental function that appears to be an inevitable consequence of growing older. The World Health Organization predicts that between 2015 and 2050, the proportion of the world’s population aged over 60 will nearly double, from 12% to 22%. So more people are living for longer, meaning that age-related disease and disability is a major and escalating concern for society.

The term ‘cognitive decline’ is often used to describe the deterioration in some aspects of brain function that occurs with age. Dementia is used to define a decline in mental ability that is severe enough to interfere with daily life. It is characterized by memory loss and by difficulties with thinking, problem-solving or communicating. There are several causes of dementia, with Alzheimer’s disease being the most common type, followed by vascular dementia. Continue reading “Counteracting cognitive decline & dementia”

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Biochemical SocietyMarch 17, 2017May 2, 2017Leave a comment
Events, Research, Science communication & public engagement

Getting connected with our brain

By Dr Shane Hegarty, University College Cork, Ireland

SH
Dr Shane Hegarty (Photo by Tomas Tyner, UCC.)

The brain is responsible for our experience of, and acts as the interface between, the self and the outside world. Everything we think, feel, remember and dream is written by a precisely-interconnected community of approximately 100 billion brain cells. Have you ever wondered where the different types of neurons in our brain originate from? Or how these brain cells then find their way to connect with other cells, up to a metre away in our body? These answers can be found in the developing brain, which arises from the microscopic, but miraculous, embryo.

Creation of our brain

Very early in human development, the embryo consists simply of three fundamental cell layers: outer ectoderm (becomes outer-body parts e.g. skin/hair/teeth); middle mesoderm (develops into muscles, bones and blood vessels); and inner endoderm (forms our inner-body compartments e.g. gut/lungs). That’s most of our body covered, but where does our brain come from? Continue reading “Getting connected with our brain”

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Biochemical SocietyMarch 14, 2017May 2, 20172 Comments

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