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This paper uses machine learning models trained on transcranial Doppler features to predict brain vascular age, finding accelerated aging in subjects with brain diseases such as stroke and Alzheimer's.
OpenAI is rolling out an age prediction model on ChatGPT to identify accounts likely belonging to users under 18 and apply appropriate safeguards. The system uses behavioral and account-level signals to estimate age and restricts access to sensitive content for minors, with options for age verification and parental controls.