Research here......... http://www.google.ca/url?sa=t&rct=j&q=&esrc=s&frm=1&source=web&cd=4&sqi=2&ved=0CJwBEBYwAw&url=http%3A%2F%2Fwww.helpguide.org%2Felder%2Falzheimers_disease_dementias_caring_caregivers.htm&ei=_YzWT7CMMISS9gTykb3NAw&usg=AFQjCNGoD12ZcgsGqlw2zEggrvT2ErHwIw&sig2=ieV9t7-kdbcu3qtR8QxS2g

Alzheimers organization will give you the clearest information.  If you google them; you will receive several options for information relating to dementia.

Understanding..care and compassion to the sufferer and the family...Helping in any and every way that is warranted...sometimes means taking care of the sufferer so that the family/nearest and dearest who are also sufferers of this awful condition..can have a bit of time out and know that they`re loved one is in good hands..(Individualized care...liase with the family and find out what they require of the care too)...Patience is vital as is feeding/helping the patient to express  themselves as best as they can..hygiene..understanding are just a few on the list!!...Treat the individual as you would wish you and yours to be treated..it all adds up to a better quality of life!