**7. Conclusion**

The high costs of health care, the lack of time to visit the doctor on a regular basis, and the growing interest to prevent illness and diseases are some of the factors that motivate individuals to take health care into their own hands and that can be achieved with the use of technology. The use of apps to monitor exercise and calorie intake seems to be popular among participants in the studied Facebook communities, as well as in the group of runners. Nowadays, apps can be linked to SNS; therefore, individuals receive immediate feedback both from the apps and from their peers in their SNS. Sharing exercise information and badges affects feelings of connectedness among members of the communities, provides a tool that can be used to encourage others to change their current behavior and engage in a healthier one, and motivates individuals to aim higher in terms of exercise goals. By using specific tools like Telegram to create small communities, individuals find a network conformed of peers that have similar problems and that provide an empathic advice that sometimes is hard to find with relatives and friends. Health apps, therefore, can be used to design specific health marketing interventions. In summary, digital technologies can assist individuals in making good decisions that lead to healthy outcomes.
