Dementia is the name given to a group of symptoms linked to an ongoing decline in brain function, according to the NHS.
Alzheimer’s disease symptoms – a type of dementia – can include problems with speech, hallucinations, disturbed sleep, and repetitive behaviour.
You could lower your risk of dementia, or even prevent the condition, by exercising regularly, the Alzheimer’s Society said.
You should do at least 150 minutes of activity every week to prevent the condition, it said.
“Keep physically active for at least 30 minutes, five times a week,” said the Alzheimer’s Society.
“You’ll need to be active enough to raise your heart rate and get a bit out of breath.
“You could walk, cycle, swim or join an exercise or dance group. Regular physical exercise in middle-aged or older adults reduces the risk of developing dementia.
“It’s also good for your heart and mental wellbeing. Exercise like this brings health benefits even if you’re not losing weight.”
You could also help to prevent dementia symptoms by eating a healthy, balanced diet, the society said.
A healthy diet contains oily fish, fruit, vegetables, unrefined cereals and olive oil.
Maintaining a healthy weight will lower your risk of type 2 diabetes, strokes and heart disease. All of these conditions are also risk factors for dementia.
Try doing a daily puzzle or learning a new language to keep your mind active. A daily workout for your brain could lower your chances of developing dementia.
About 850,000 people in the UK have dementia.
You shouldn’t put off getting a dementia diagnosis, as early detection could help to slow down the disease’s progress.
See a GP if you, or someone you know, has been experiencing symptoms for longer than six months.
Just because you’re having memory problems doesn’t mean that you’ll be diagnosed with dementia. It could also be a sign of depression, anxiety, drinking too much alcohol, or thyroid problems.