A National Safety Council (NSC) survey found 90 percent of America’s employers have been negatively impacted by tired employees, with half saying they’ve had an employee fall asleep on the job. Fifty-seven percent of employers have experienced absenteeism, and another 32 percent report injuries and near-misses due to fatigued employees, according to the survey released today.

Short sleep, obesity, and physical inactivity occur frequently among workers, affecting more than one in five, according to a recent National Institute for Occupational Safety and Health (NIOSH) study published in the Journal of Occupational and Environmental Medicine. These modifiable risk factors can lead to serious illnesses, such as heart disease and type 2 diabetes.

Millennials have a reputation for not being intensely loyal to their employers and willing to change jobs quickly – but is that reputation deserved? A couple of researchers who are themselves millennials set out to test negative perceptions about workers born between 1981 and 1996 – and some of their results are surprising.

Insomnia is costing U.S. companies more than $63 billion a year, according to a new white paper that examines the toll that insufficient sleep takes on safety and productivity at work. Entitled Sick, Unsafe, and Unproductive: Poor Employee Sleep Is Bad for Business, the publication from the Society for Industrial and Organizational Psychology (SIOP)  notes that sleep is a basic biological need, and getting less than seven hours of it a night (for the average person) can have serious detrimental consequences for an individuals’ long-term health, safety, and performance.

Training and development efforts that are informed by psychological research and theory and adapted to fit the needs of associates have resulted in Marriott International being recognized for having a Psychologically Healthy Workplace – an award given annually by the American Psychological Association (APA).