Omega-3 fatty acids, cognitive decline, and Alzheimer's disease: a critical review and evaluation of the literature.

The precipitous decline of memory and independence associated with cognitive decline, dementia, and Alzheimer's disease is emotionally and financially devastating to patients, their families, and caretakers. Studies from animal models and cell cultures have shown that omega-3 fatty acids (n-3 FAs) are neuroprotective during development and aging. Numerous epidemiologic, postmortem, and clinical trials have been published on fish or n-3 FAs and Alzheimer's disease, dementia, or cognitive decline.

A comprehensive review of the psychological effects of brainwave entrainment.

Objective: Brainwave entrainment (BWE), which uses rhythmic stimuli to alter brainwave frequency and thus brain states, has been investigated and used since the late 1800s, yet many clinicians and scientists are unaware of its existence. We aim to raise awareness and discuss its potential by presenting a systematic review of the literature from peer-reviewed journals on the psychological effects of BWE.

Data Sources: Terms used to describe BWE and psychological outcomes were used to search English language studies from OVID Medline (1950-2007), PsychInfo (1806-2007), and Scopus.