How Pain Is Linked to Depression

That chronic pain and depression are so often bound together suggests a complex relationship, and the brain's shared circuitry for social and physical pain may lie at its heart.

Chronic pain and depression arise from faulty neural circuitry. "In both disorders, pain continues long after some initial insult has healed, disappeared or moved on, and the experience of social rejection or physical pain persists, feeds on itself and becomes chronic. Both disorders often seem mysterious in that their origins are hard to pinpoint. And both signal their presence with a subtle but powerful physiological marker: systemic inflammation. Genes, temperament or early experience—including childhood trauma, neglect or abuse—may each play a role in predisposing someone to both disorders."

Orangutans exhibit awareness of the past

Orangutans join humans and bees in a very exclusive club

(Eugene Sim/Shutterstock)
Surprising Science
  • Orangutan mothers wait to sound a danger alarm to avoid tipping off predators to their location
  • It took a couple of researchers crawling around the Sumatran jungle to discover the phenomenon
  • This ability may come from a common ancestor
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China’s artificial sun reaches fusion temperature: 100 million degrees

In a breakthrough for nuclear fusion research, scientists at China's Experimental Advanced Superconducting Tokamak (EAST) reactor have produced temperatures necessary for nuclear fusion on Earth.

Credit: EAST Team
Surprising Science
  • The EAST reactor was able to heat hydrogen to temperatures exceeding 100 million degrees Celsius.
  • Nuclear fusion could someday provide the planet with a virtually limitless supply of clean energy.
  • Still, scientists have many other obstacles to pass before fusion technology becomes a viable energy source.
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Understand your own mind and goals via bullet journaling

Journaling can help you materialize your ambitions.

Videos
  • Organizing your thoughts can help you plan and achieve goals that might otherwise seen unobtainable.
  • The Bullet Journal method, in particular, can reduce clutter in your life by helping you visualize your future.
  • One way to view your journal might be less of a narrative and more of a timeline of decisions.
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