What This Means
This research examined trends in physical activity, sedentary behavior (sitting time), and sleep among Mexican teenagers aged 15 to 19 years, using data from national health surveys conducted between 2012 and 2022-2024. The researchers found that over this period, the amount of time adolescents spent sitting each day increased, and fewer teenagers were meeting recommended guidelines for physical activity, sitting time, and sleep. Notably, these unhealthy trends were not evenly distributed — certain groups were more likely to fall short of recommendations.
The study found that girls, younger teenagers (under 17-18 years old), those who did not work, those living in cities, those with higher education levels, and those from wealthier households were among the groups least likely to meet physical activity recommendations and most likely to be sedentary. Teenagers living in northern Mexico also showed greater likelihood of not meeting these health guidelines. These patterns suggest that higher socioeconomic status and urban living do not necessarily protect against unhealthy movement and sleep behaviors — in fact, they may be associated with more sedentary lifestyles.
This research suggests that public health efforts in Mexico targeting adolescent physical activity and sleep should consider these social and geographic inequalities. Interventions may need to be specifically tailored for girls, urban youth, and those in higher-income or more educated households, as these groups appear to be at particular risk of not meeting healthy behavior recommendations despite their relative socioeconomic advantages.