In stage 4, issues involving other cognitive functions including difficulty with language, organization, and calculations develop. The person with Alzheimer’s may remember their spouse and their state of residence, but what happened earlier that day may elude them. They may wander outside in inclement weather or face dangerous traffic conditions looking for that elusive feeling from years past. Changes in sleep patterns may occur. Also, the person with Alzheimer’s may become moody, suspicious, and feel depressed. These limitations challenge their ability to perform daily tasks. This stage can last for years.

For Judy, this stage extended from mid-2016 through 2018. Writing checks became beyond her capability; she needed help taking a shower. She wore the same clothes every day. She couldn’t remember how to disarm the security system.