An experimental device developed by Cognito Therapeutics seeks to slow cognitive decline in Alzheimer’s patients using light and sound.

Pura Scents is recalling more than 850,000 diffusers because some magnets may detach and cause a possible ingestion hazard to children.

Just as a new wave of approved drugs for Alzheimer’s reaches patients, Cognito Therapeutics has raised a fresh $35 million to advance its alternative treatment.