There are now four drug treatments, all monoclonal antibodies, which have been shown to reduce amyloid in the brain. Amyloid build-up in the brain is associated with the cognitive changes of Alzheimer’s Disease, although there are questions about the exact nature of this relationship between amyloid and cognitive deterioration. One of these drugs (lecanemab) has now been shown to halt or slow clinical deterioration in cognitive functions as well as reducing amyloid in the brain. There are however, a number…..