What group of elements does the shaded area in the following periodic table indicate? 
Definitions:
Pain Medication
Pain medication encompasses drugs used to alleviate discomfort and pain, ranging from over-the-counter options to prescription opioids.
Yoga
A disciplined method encompassing the physical, mental, and spiritual practices or disciplines that originated in ancient India.
Halo Effect
A cognitive bias in which an observer's overall impression of a person, company, brand, or product influences their feelings and thoughts about that entity's character or properties.
Positive Evaluation
The act of assessing something favorably, highlighting its strengths and merits often in a subjective manner.
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