Everyday tasks we take for granted such as thinking, remembering, reacting, paying attention, recognising people and our environment are collectively known as cognitive functions. As we get older some of these processes maybe effected as our brain undergoes natural structural and functional changes. However the extent of these changes will vary from one individual to another.

The term Dementia describes a group of cognitive symptoms that get worse over time including loss of memory, mood changes, and problems with communication and reasoning. While there are a number of different diseases and conditions that cause Dementia, Alzheimer’s disease (AD) is the most common cause. In Europe approximately 9.9 million people suffer from Dementia, with Western Europe having the highest proportion of sufferers in the world.

Soyfoods and cognitive health (PDF)