Digital health apps appear to have a significant impact on wellbeing.

Health and fitness apps, though often seen as minor digital tools, have proven to deliver substantial benefits in promoting physical and mental wellbeing, according to a new study from the University of South Australia.

Researchers at the university reviewed data from 206,873 participants across 47 studies, finding that digital health interventions, including mobile apps, websites, and text messages, can significantly enhance health outcomes. 

These tools were shown to increase physical activity, improve dietary habits, and enhance sleep quality among users.

The study highlighted several key improvements among participants who used digital health tools. 

On average, users took 1,329 more steps per day and engaged in 55 more minutes of moderate-to-vigorous exercise each week. 

Additionally, overall physical activity increased by 45 minutes per week, and sedentary behaviour was reduced by seven hours per week.

Dietary improvements were also observed. 

Users consumed 103 fewer calories per day, increased their intake of fruits and vegetables by 20 per cent, and reduced their consumption of saturated fats by 5.5 grams per day. 

These changes contributed to an average weight loss of 1.9 kilograms over 12 weeks.

Sleep quality also improved, with participants experiencing better rest and less severe insomnia.

Given the global economic burden of chronic diseases, which is estimated to surpass USD 47 trillion by 2023, these findings are particularly relevant. 

The World Health Organization reports that one in eight people globally now live with obesity, 422 million people have diabetes, and cardiovascular disease remains the leading cause of death worldwide.

Dr Ben Singh, the lead researcher from UniSA, emphasised the potential of digital health interventions in tackling these challenges. 

“With the rise of preventable chronic diseases like obesity, cardiovascular disease, and type 2 diabetes, finding mechanisms that can help reduce people's risk is important,” Dr Singh stated.

He also noted the broad accessibility and popularity of health apps, which can tailor information and provide timely reminders to users, making them a scalable solution for diverse populations. 

“By incorporating digital tools into your everyday life, you’re more likely to achieve positive outcomes,” Dr Singh added.

The study suggests that digital health apps could play a vital role in public health campaigns aimed at reducing the incidence of chronic diseases. 

The full study is accessible here.