Online cognitive behavioral therapy can benefit people with depression, anxiety, and emotional distress caused by illness, a new review of studies shows. The benefit arises when the online therapy is combined with some degree of personal care as well. Cognitive behavioral therapy is a common type of psychotherapy, a talking therapy that can help people manage their problems by changing the way they think and behave. In the past decade, a lot of online tools have been developed to support cognitive behavioral therapy, like smartphone apps and computer programs. These seem beneficial especially because people can decide to turn to these tools whenever they choose to. More research is necessary to find out what the best combinations of personal and digital care would be for people with depression, anxiety and emotional distress.