Light + Health

  Scientists at the University of Cambridge have achieved what was once considered impossible by electrically powering insulating nanoparticles to create a completely new kind of LED. Using tiny organic “molecular antennas,” the team found a way to funnel energy into materials that normally cannot conduct electricity, producing ultra pure near infrared light with remarkable [...]

  What Is Quantum Biology? Quantum biology is an emerging scientific field that studies the role of quantum mechanics—the physics of particles at the atomic and subatomic levels—in living organisms. It explores how biological processes rely on phenomena like quantum tunneling and coherence, rather than just classical physics and standard chemistry. Researchers focus on a variety of [...]

  By Mariel Acevedo, MIES – ALR & Amanda Schaneman, MIES – ETC Trauma informed design (TID) is a newer form of practice in the architectural community.  It’s been around since 2013 and is gaining traction in all kinds of building types.  As the work becomes more prominent, the lighting community should understand the language [...]

  By Bill Chan, President at LiteController Inc. During talks I’ve given over the years, I often encourage people to take a morning walk outside for at least half an hour—so their eyes are exposed to daylight and their circadian rhythm can stay aligned. However, I am often asked a very practical question: “If I [...]

  A recent dark sky project has had me thinking and researching light pollution, sky glow, and by extension an optical phenomenon that we can experience on most clear days or nights. Rayleigh scattering is an interaction of light with Earth’s atmosphere. It’s most notable characteristic is it scatters lower wavelength light colors (violet and [...]

  InSinkErator, one of the leading manufacturers of garbage disposals, has released its LEDefense line, with antimicrobial light technology added to garbage disposals to fight the odor-causing bacteria that builds up with food waste. Instead of waiting until a disposal smells bad and then using citrus peels or cleaning pods, the product uses always-on light [...]

  Smart homes are evolving from simple convenience systems into environments that react to human biological signals. One company, Ultrahuman, is working to fuse wearables, lab biomarkers, and home automation into a continuous health feedback loop. Ultrahuman, founded in 2019, began with an activity-tracking app and later added metabolic tracking via continuous glucose monitoring in [...]

  Researchers at the University of Edinburgh analyzed whether ultraviolet (UV) exposure in low-sunlight regions is associated with better or worse health outcomes, focusing on deaths from cardiovascular disease, cancer, and skin cancer. Using UK Biobank data from 395,000 white European participants across the UK, they linked individual health and genetic records with estimated UV [...]

  This study used ultra–high-field 7T fMRI to examine how temporal light modulation (TLM) (aka flicker) at different frequencies activates or deactivates brain regions in healthy adults, with a particular focus on whether non-perceptible flicker still drives visual cortex responses. Participants viewed LED stimuli modulated at 50 Hz (clearly perceived as flicker) and at ≥100 [...]