http://medicalxpress.com/ en-us Medical Xpress internet news portal provides the latest news on Health and Medicine. Think of a stereotypical salesperson and you're likely to conjure up someone who's extraverted, gregarious, and assertive. But a new study reveals that "ambiverts," people who are neither introverted nor extraverted but who fall somewhere in between, tend to be the most effective salespeople. http://medicalxpress.com/news/2013-04-sales-confidence-charisma.html Psychology & Psychiatry Wed, 10 Apr 2013 15:20:02 EST news284825141 The first in-depth investigation of whether youthful happiness leads to greater wealth in later life reveals that, even allowing for other influences, happy adolescents are likely to earn more money as adults. http://medicalxpress.com/news/2012-11-happy-youngsters-wealthy-adults.html Psychology & Psychiatry Mon, 19 Nov 2012 15:00:22 EST news272541529