# Rewind Life > The first AI-powered operating system engineered to reverse biological age through personalized protocols, biomarker testing, and continuous cellular optimization. Rewind Life combines a personalized health protocol, biomarker testing, wearable signals, and clinical support into one continuously adapting system. It estimates your biological age, builds a daily protocol to improve it, and refines that protocol as new data comes in. Membership starts at $1 per day. Optional add-ons include lab testing, physician consults, prescriptions, peptide protocols, and GLP-1 therapies. ## Pages - [Home](/): Rewind Life — reverse your biological age with an AI-powered longevity operating system. - [How it works](/how-it-works): From 2-minute assessment to biomarker testing, wearable signals, and clinical support — how Rewind builds and adapts your protocol. - [About](/about): Built and overseen by a medical board of longevity physicians and researchers. - [FAQs](/faqs): Answers on the Rewind Score, biological age testing, what's included for $1/day, cancellation, and clinical care. - [The Rewind Challenge](/challenge): Join the challenge to measurably reverse your biological age. ## Optional - [Terms of Service](/terms): Terms governing use of Rewind Life's platform, membership, and clinical services. - [Privacy Policy](/privacy): How Rewind collects, uses, and protects your health and account data.