My husband is in the 4th year of Alzheimer'sn he's 87 years old .... the past 6 months the aggitation is getting worse, especially during the hours of 3pm - 7pm. I can tell what time it is by what he says & the way he says it, without even looking at the clock. I've tried bright lights/low lights, games/no games. TV/no TV, quiet music/no noise. I;m running out of ideas! Suggestions welcome!!!