A study conducted by the UK Dementia Research Institute team at Cardiff University suggests that smartwatches may be able to diagnose Parkinson's disease up to seven years before symptoms appear. The researchers used artificial intelligence to analyze data from 103,712 smartwatch wearers, tracking their speed of movement over a week between 2013 and 2016. By doing so, they were able to predict which individuals would go on to develop Parkinson's. The researchers believe that this method could be used as a screening tool, potentially aiding in the early detection of the disease. However, further studies are required to validate these findings and compare them with data from other sources. The researchers used data from the UK Biobank, a health database of over half a million individuals, to conduct the study. The study's results offer hope for cheap and reliable early-stage Parkinson's detection, potentially improving recruitment into clinical trials and allowing patients to access treatments earlier.

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