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RMSSD 
The RMSSD value is sent as part of the final results.
The application can receive the RMSSD result by using the useFinalResults hook:
TypeScript
import { 
    VitalSignTypes,
    useFinalResults
} from 'binah-react-native-sdk';
const finalResults = useFinalResults();
React.useEffect(() => {
    if (finalResults) {
        const rmssd = finalResults.getResult(VitalSignTypes.RMSSD);
        if (rmssd) {
            console.log(`RMSSD: ${rmssd.value}`);
        }
    }
}, [finalResults]);For general information about vital signs see the Vital Signs and Health Indicators Information Page.
For a list of supported vital signs per platform and measurement mode (face/finger) see the Supported Vital Signs Page.