A new, collaborative study between the US, Canada, Sweden, and Korea is uncovering information to help us better understand and treat Alzheimer’s. Rather than one universal, dominant diagnosis of Alzheimer’s, researchers have discovered that there are 4 distinguishable variants. Subgroup 1: Primary impact is on memory. Subgroup 2: Less of an effect on memory and much more on executive functioning, such as carrying out actions or planning activities. It affects about one out of five Alzheimer’s patients. Subgroup 3: Affecting an individual’s orientation to self, capacity to distinguish distance, shapes, contours, movement, and an object’s location in relation to other objects. Subgroup 4: Effect on language.