Alzheimer's: Lithium, the missing piece of the puzzle?

Alzheimer's: Lithium, the missing piece of the puzzle?

August 6, 2025

Science and Future Health Brain and psychology

Brain and psychology

Lithium, the missing piece of the puzzle for treating Alzheimer's disease?

By Coralie Lemke THE Subscribers

For the first time, researchers have shown that the onset of dementia appears to be linked to a decline in lithium levels in the brain. In mice, lithium treatment has shown a reversible effect on Alzheimer's disease.

Lithium has shown promising effects in mouse models of Alzheimer's disease.

Lithium has shown promising effects in mouse models of Alzheimer's disease.

Photo by TEK IMAGE/SCIENCE PHOTO LIBRARY / ABO / Science Photo Library via AFP

Could lithium be the missing piece of the Alzheimer's disease puzzle? In recent years, the field has made great strides, with the development of the first treatments capable of reversing dementia and new blood screening tests. However, Alzheimer's disease still has many gray areas. Some key mechanisms are now known, such as the role of two proteins (beta-amyloid and tau) that accumulate in the brain and prevent neurons from functioning properly. Certain genes, such as APOE, are among the unfavorable factors, as is an unhealthy lifestyle. But what exactly triggers this disease? What is the common thread between this range of symptoms? After more than a decade of work, lithium could be a solid lead, according to a study published in Nature.

Lithium is naturally present in the brain and protects it from neurodegeneration

Alzheimer's disease Lithium Dementia

Science and Future Newsletter

Subscribe to Newsletters

Brain and psychology: the most read articles

en_USEnglish