Apple’s ResearchKit wants your health data
But logging cardiac information might raise your blood pressure
![](https://i0.wp.com/www.sciencenews.org/wp-content/uploads/2015/04/bo_fitnessapphero_free.jpg?fit=860%2C460&ssl=1)
STEPPING OUT Smartphone users can submit health and activity data for scientific research using a new series of apps that are designed for use with Apple’s ResearchKit.
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