The common thread is work and leadership experience in a related field.

FORBES: Why Is Military Active Duty, "Serving Our Country," But Parenting Active Duty, "Opting Out"?

Volunteers who stayed asleep did not experience an increase, which suggests work-related stress is most likely to blame.

BBC: Returning to work involves a stressful shift from leisure

The researchers looked at the effects of age, job-related experience, vocational training, outside activities and length of gaps in work history.

FORBES: Trying To Find a Job? Here Are The Top Entry-Level Resume Characteristics For Obtaining An Interview

Chiang, who has significant international work experience, opened the discussion by identifying the difference between implicit (issues related to the local laws and the license to operate) and explicit (volunteerism, philanthropy, etc.) CSR.

FORBES: Asian MBA Leadership Conference Focuses on CSR