Proloog valguse ja tervisliku käitumise juurde

Valguse ja pimeduse küsimused on Eesti aladel väga praktilised ning seetõttu siinviidatu oma koha leidiski. Aga mitte ainult. Tegemist on tekstiga väga mõjukast ajakirjast ning seda artiklit tasub lugeda lisaks sisule ka metodoloogia ja ülesehituse pärast.


In the U.S., less than 5% of the adult population exercise for at least 30 minutes per day. Meanwhile, Americans typically eat less than the recommended amounts of fruits and vegetables, with 90% consuming more sodium than is recommended (Centers for Disease Control and Prevention [CDC], 2012). Nearly 40% of the adult population in the U.S. thus is obese, with 72% classified as overweight, which includes obesity (CDC, 2018). Similar rates are observed in Australia (67%; Australian Government, 2019), Canada (61%; Vogel, 2017), China (Radu, 2019), and also the U.K. (63%; Dearden, 2017).

Artikli ambitsioon:

In the current research, we examine the possibility that the physical environment might also influence healthy behaviors, and therefore offer a means to promote healthier lifestyles. […] In this research, we focus on a different environmental factor—how bright or dark it is. We posit that brightness (vs. darkness) motivates individuals to choose healthier foods and to exercise more.

Valgusest näidetega:

Certainly, if it is dark outside, then one cannot visually detect and “see” other people. Even metaphors such as “to bring to light” and “hidden in the dark” similarly suggest the ability to see others clearly under brightness. Consequently, brightness can lead people to feel they are being observed. For example, bright environments decrease anonymity, while darkness increases it

Laiendatud hüpotees:

Brightness (vs. darkness) increases self-accountability to then motivate physically healthy behaviors and choices.

Mõned järeldused:

The current investigation presents three experimental studies the results of which suggest that brightness can play a role in shaping physically healthy behaviors. Specifically, being in a bright (vs. dark) room can increase the choice of healthy (vs. less) healthy foods (Studies 1, 3) and increase exercise intentions (Study 2). […] For example, our findings could suggest that exercise venues such as gyms should be bright, in order to prompt a greater sense of self-awareness (especially with other people around). Similarly, restaurants and fast food outlets could use brighter lighting to encourage healthier food choices. Our findings also suggest that doctors who are looking for ways to get clients and patients to choose healthier lifestyles could use light to do so.

Chan, E. Y. (2021). Brightness Motivates Healthy Behaviors: The Role of Self-Accountability. Environment and Behavior.