Psychology & Psychiatry

Feeling disgust may enhance our ability to detect impurities

Disgust – it's an emotion we experience when we encounter things that are dirty, impure, or otherwise contaminated. From an evolutionary standpoint, experiencing the intense, visceral sense of revulsion that comes with ...

Medical research

New scientific method unmasks chronic infections

Chronic infections are a large and growing problem throughout the developed world, and intensive research is being conducted in ways to combat the recalcitrant bacteria. When bacteria aggregate into so-called biofilm, they ...

Health

Do white LEDs disrupt our biological clocks?

You come into contact every day with light-emitting diodes (LEDs) -- they illuminate alarm clocks, new televisions, traffic lights, and smartphone displays. Increasingly, you will see white-light versions of LEDs becoming ...

Health

'White' light suppresses the body's production of melatonin

Exposure to the light of white LED bulbs, it turns out, suppresses melatonin 5 times more than exposure to the light of High Pressure Sodium bulbs that give off an orange-yellow light. "Just as there are regulations and standards ...

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