Photic sneeze reflex is a condition triggered by exposure to bright light. Around 35% of the population has this reflex. Sneezing is a natural response that removes irritants from your nose. But while ...

Every sunrise and sunset sends the body a signal, keeping the circadian clock running on a roughly 24-hour cycle. This clock evolved so organisms could adapt to Earth's daily rotation, syncing their ...

As daylight diminishes people can feel their mood dimming. Experts say starting light therapy in the fall can help fend off winter depression. As the days get shorter, many people may also find their ...

Insomnia, as well as other types of sleep disturbances, often present in dementia patients. Between 25-30% of dementia patients also report insomnia. Bright light therapy (BLT) has been shown to treat ...

Past research has found that exposure to bright lights and high levels of noise can alter both physiological processes and human behavior. For instance, an elevated or limited exposure to bright ...

Air pollution and night-time outdoor light each were associated with harmful effects on brain health, finds new study. People continuously exposed to bright, artificial light at night may be at ...

Regular morning exposure to bright light may improve seasonal depressed mood This is the third post in a series on non-pharmacologic treatments of depressed mood. Previous posts provided brief reviews ...

Have you noticed you're sleeping a little longer? Maybe you're experiencing a shift in appetite — craving more sweets or pasta. In autumn, our bodies sense the change in light as the dark winter ...