PBM stands for Photobiomodulation, which is a therapy that uses low-level light to stimulate cellular function and promote healing in the body. It has been used in various medical fields, including neurology, to treat conditions such as Alzheimer's disease. Alzheimer's disease is a progressive brain disorder that affects memory, thinking, and behavior. It is most commonly found in older adults and is the most common cause of dementia. Alzheimer's disease is characterized by the accumulation of abnormal protein deposits in the brain, leading to the death of brain cells and the subsequent decline in cognitive function. PBM light therapy has shown potential in the treatment of Alzheimer's disease in elderly individuals. It has been found to have neuroprotective effects, promoting the survival and function of brain cells. PBM light therapy may also reduce inflammation and oxidative stress in the brain, which are believed to contribute to the progression of Alzheimer's disease. However, it is important to note that PBM light therapy is still an emerging field, and more research is needed to fully understand its effectiveness and optimal treatment protocols for Alzheimer's disease. It is always recommended to consult with a healthcare professional before considering any new treatment options.