Today's Health Topic
The dark side of blue light
Until the advent of artificial lighting, the sun was the major source of lighting, and people spent their evenings in (relative) darkness. Now, in much of the world, evenings are illuminated, and we take our easy access to all those lumens pretty much for granted.
But we may be paying a price for basking in all that light. At night, light throws the body's biological clock — the circadian rhythm — out of whack. Sleep suffers. Worse, research shows that it may contribute to the causation of cancer, diabetes, heart disease, and obesity.
|•||Sleep throughout life|
|•||Dangers of sleep deprivation|
|•||SPECIAL SECTION Practical tips for sounder sleep|
|•||Medical conditions that disrupt sleep|
|•||... and more!|
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