Harvard Medical School scientists have made a groundbreaking discovery linking lithium to Alzheimer’s disease treatment. Their research found that lithium levels are significantly lower even in the earliest stages of memory loss. Amyloid-beta plaques, known to cause Alzheimer’s, bind to lithium in the brain, reducing its availability and speeding up the disease’s progression. This study marks the first time lithium, widely used in psychiatric medicine, has been shown to naturally exist in the br