Researchers at Rensselaer’s Lighting Research Center have found that exposing people to reddish light during the “post-lunch dip” can be advantageous. The “dip” is generally from 2 to 4 in the afternoon or 16-18 hours after bedtime the previous night. Mariana Figueiro and Levent Sahin conducted a study whose “results suggest that red light positively affects measures of alertness not only at night, but also during the day . . .
A conference provides new insights into the influence of light on human experience.
In a 2012 presentation at Light Canada/IIDEX 2012, Jennifer Veitch of the National Research Council Canada effectively summarized the findings of office lighting research carried out by her, her colleagues, and other researchers. As Veitch reports, “Laboratory research at NRC and elsewhere demonstrated that people prefer a mixture of direct and indirect lighting that lights the entire workspace and individual personal control over the local lighting level.
Steidle and colleagues discussed the influences of light and temperature on social behavior at ExperiencingLight 2012, a prestigious international conference. Participants in the study they presented worked for an hour and a half in one of four different conditions, experienced light levels that were either 150 or 1500 lux and room temperature of either 20 degrees or 26 decrees centigrade (68 degrees or 79 degrees Fahrenheit). The researchers found that “Participants in the dim room reported less fear for rejection than participants in the brightly lit room .
Lighting and overall design influence how safe people feel.
Understanding the need for light and windows in residential settings.
Researchers have linked environmental conditions inside American offices with the prevalence of headaches. Information collected by the Environmental Protection Agency (EPA) indicates that “Office workers may suffer more intense migraines and more frequent headaches due to an uncomfortable indoor environment . . . employees working indoors may become sick due to abnormal levels of carbon monoxide, carbon dioxide, volatile organic compounds, light, humidity, temperature and sound . . . .
Recent research at Johns Hopkins confirms previous research linking negative outcomes to human experience of light at night (i.e., http://researchdesignconnections.com/content/more-evidence-problems-ligh...). Samer Hattar from Johns Hopkins found that “When people routinely burn the midnight oil, they risk suffering depression and learning issues, and not only because of lack of sleep.
Adolescents seem to be chronically sleep deprived and new research at Rensselaer Polytechnic Institute provides information about how light in schools and homes can be used to counter that condition.
Trying to design to make healthy eating more likely?