It's uncertain why working on a computer all day long is so physically exhausting, although studies point to a couple of possibilities, writes Brian Resnick. One hypothesis is that the mental energy used has a draining effect on our bodies, while the other involves loss of motivation as the energy-draining culprit.

Onboarding is an ongoing process that begins before the official first day and continues after orientation events have concluded, writes Shaara Roman, managing partner of Silverene Group. "When part of an overall people strategy, onboarding connects the company's mission, vision, and strategy with the cultural context and the job-specific elements," Roman writes.

More women are stepping into the role of breadwinner or equal earner, which can strengthen marriages by creating more financial security. But challenges remain, including child care costs and employers' reluctance to accommodate working mothers.

Artificial intelligence can help reduce stress and improve employee well-being through machine learning, digital fitness tracking and wearables. These metrics can help maximize workplace productivity, decrease employee stress and improve safety.

Instead of telling people what to do, HR leaders should ask questions that lead employees to their own insightful answers, writes Corrinne Armour. "The simple act of searching for and finding our own answers is rewarding to the brain," she writes.