During the pandemic many people have become physically inactive and developed irregular eating patterns, which leads to unhealthier lifestyles and aggravation of lifestyle-related diseases; these in turn increase the severity of COVID-19. Prior to the COVID-19 pandemic, we developed a smartphone application to investigate eating patterns, physical activity, and subjective feelings of happiness. lifestyle-related diseases such as obesity, diabetes, and hypertension appear to increase its severity and mortality risk. A cohort study in the United Kingdom showed that a healthier lifestyle that included regular eating patterns with healthier food choices and increased physical activity, which together form a key strategy to prevent lifestyle-related diseases, reduces the risk of COVID-19 hospital admission.
The pandemic has changed lifestyles dramatically, with many people working from home and having little contact with people other than family members. These changes have possibly led to less physical activity, altered rhythms of daily life, and unhealthier lifestyles. Many adults who are not leaving home to go to work and are spending more time at home may have greatly diminished levels of daily physical activity or time spent outdoors. Additionally, they may be snacking more and experiencing more circadian rhythm disorders. One international online survey identified unhealthier food consumption and meal patterns, as well as decreased physical activity and increased sedentary time, during quarantine.
lifestyle-related habits in a significant manner as the pandemic progresses through its different phases. Public health recommendations and government measures taken to abate infection have indirectly impacted food availability, dietary quality, normal daily activities, access to recreational public settings, social activities, work and financial security. These factors compound over time to radically change lifestyle-related behaviors, especially daily eating, activity and sleep behaviors that are known to be independent risk factors for metabolic complications such as obesity, diabetes and cardiovascular disorders.
Increasing penetration of smartphones and wearable devices means that these technologies are attractive methods of continuously and remotely monitoring people’s health and lifestyle. Using an online health platform to collect lifestyle data from smartphones and wearable activity trackers, Sun et al. observed a general later shift in sleep–wake patterns, longer home stays, and fewer daily steps during quarantine compared with before the pandemic . Moreover, they described differences in behavioral changes among European countries, possibly owing to the different focus in COVID-19 interventions. Data from wrist-worn wearable sensors in a longitudinal population health study in Singapore showed robust changes in rest–activity rhythm, namely, delayed bedtime and a large drop in physical activity.