Cala Health is a healthcare company that develops wearable neuromodulation therapies for chronic diseases. The company's flagship product, Cala Trio, is a non-invasive therapy for essential tremor, a neurological disorder that causes involuntary shaking. Cala Health's therapies are designed to be personalized and adaptive, using machine learning algorithms to optimize treatment. The company was founded in 2014 and is headquartered in Redwood City, California.