Soft skills humans rather than quantitative intelligence. Many industries today give prominence to soft skills of their employees. It is through a 1972 US Army training manual identified formal usage of the term "soft skills" began. Soft skills are a cluster of productive personality traits that characterize one's relationships in a milieu. These skills can include social graces, communication abilities, language skills, personal habits, cognitive or emotional empathy, time management, teamwork and leadership traits. A definition based on review literature explains soft skills as an umbrella term for skills under three key functional elements: people skills, social skills, and personal career attributes.
Emotional intelligence outperform when facing high emotional exhaustion contexts. A 2007 meta-analysis of 44 effect sizes by Schutte found that emotional intelligence was associated with better mental and physical health. Particularly, trait EI had the stronger association with mental and physical health. This was replicated again in 2010 by researcher Alexandra Martin who found trait EI as a strong predictor for health after conducting a meta-analysis based on 105 effect sizes and 19,815 participants. This meta-analysis also indicated that this line of research reached enough sufficiency and stability in concluding EI as a positive predictor for health. A 2012 study cross examined