Dementia is the name given to a group of symptoms linked to an ongoing decline in brain function, according to the NHS.
There are several different types of dementia, with Alzheimer’s disease being the most common in the UK.
Alzheimer’s may be caused by an abnormal build up of proteins in and around brain cells.
Dementia symptoms include sudden mood changes, difficulty concentrating and struggling to follow conversations.
But, you could improve your thinking skills and brain health by doing at least 52 hours of exercise over six months, scientists have claimed.
Dementia: Amount of exercise to reduce Alzheimer’s and boost brain health
Fifty two hours of exercise over six months could improve the brain’s processing speed, and the amount of time it takes to complete a mental task, according to US scientists.
Each workout should last for about an hour to gain the cognitive benefits, they added.
In a healthy individual, 52 hours of exercise will also improve time-management skills, and improve attention span, they revealed.
Aerobic exercise - including walking and cycling - was the most common type of exercise.
But, patients also benefited from strength or resistance training, as well as mind-body exercises, including yoga or Tai chi.
GETTY ImagesDementia: Amount of exercise to prevent Alzheimer's symptoms