US dollars https://www.genealogi.net/oxford-biolabs-reviews-cded.pdf#against oxford biolabs  While previous findings only showed limited evidence of the benefit between exercise and reduced rates of depression, more trials have lead researchers to believe in a stronger connection. They reviewed the results of 39 trials involving 2,326 people who were diagnosed with depression, looking at the severity of patients' symptoms that were assessed via standard scales used to monitor depression.