Smell can be affected when an individual has dementia this can be potentially dangerous as the individual wouldn’t be able to smell hazards for example gas leaks, fires or out of date food so equipment like alarms and sensors should be put into place and carers should be checking that food is safe and in accordance to the food standards agency regulations. So in conclusion all 5 senses can be affected by dementia and it is a matter of importance to make sure the individual is safeguarded at all times to the potential issues they may face with their sensory impairment as they might not be able to communicate when an issue has arisen.