Researchers are heralding a breakthrough in the treatment of Alzheimer’s: a drug that is the first to slow the destruction of the brain. But it only works in the early stages of Alzheimer’s and many people aren’t diagnosed until the disease has already advanced. Marco Werman speaks with an Alzheimer’s researcher to find out what is so revolutionary about the new drug lecanemab and how it can be made available to those who need it.
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