When an older person’s brain waves are in sync, memory is boosted
A brain stimulating technique could lead to noninvasive therapies for dementia
![brain scan](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2019/04/040519_ls_brain-stimulation_feat.jpg?fit=860%2C460&ssl=1)
BRAIN BOOST After electrical stimulation coaxed brain waves into synchrony in two brain spots, on the front and on the side (warm-colored areas in this model), older adults had better scores on working-memory tests.
R.M.G. Reinhart and J.A. Nguyen/Nature Neuroscience 2019