A team of researchers reviewed 18 randomized trials that tested positive psychology programs. Each trial had between 50 and 200 participants. Programs used apps, text messages and journaling, and they combined weekly sessions with daily activities at home.
The researchers found short-term heart benefits when people did the exercises often, usually every day for eight to twelve weeks. In some trials people lowered their blood pressure by about 7 to 8 points and added about 1,800 steps per day. The lead author studies digital health and older adults and plans a program using augmented reality to support movement and give real-time feedback.
Difficult words
- trial — a planned medical or science test with peopletrials
- randomize — to put people into groups by chancerandomized
- participant — a person who takes part in a studyparticipants
- journaling — writing about feelings or daily activities
- blood pressure — the force of blood inside the body
- augmented reality — computer images added to the real world view
Tip: hover, focus or tap highlighted words in the article to see quick definitions while you read or listen.
Discussion questions
- Have you used an app, text messages, or journaling to change a habit? What happened?
- Would you try daily exercises for eight to twelve weeks to improve health? Why or why not?
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