Keeping Fit In later life there’s a price to be paid for not keeping fit. It ranges from reducing your ability to live life to the full to actually taking that life away. The list of conditions and illnesses that can result from ignoring our fitness level include heart disease, high blood pressure, strokes, high cholesterol, Type 2 diabetes, and some cancers. But keeping fit is a way to help prevent most of these life-threatening conditions. More than that, recent research has identified that one way to help prevent dementia is by having good health. This is because high cholesterol and blood pressure can reduce the circulation of nutrients from our food and oxygen to the brain which, if allowed to persist, can have a significant effect on our mental function.