NewDays is a digital health startup that has developed an AI-based companion called Sunny to advance brain health and provide an innovative approach to dementia care. Their program combines frequent, structured conversations with the AI companion Sunny and telehealth appointments with licensed clinicians. These AI-led conversations are designed to improve verbal fluency, memory, and emotional well-being, and are personalized by clinicians based on patient interactions. The company aims to make cognitive rehabilitation more accessible and scalable for individuals experiencing cognitive changes.