Leaders with low self-esteem are likely to cause 'toxic' stress at work, research shows

Stress is a leading cause of common and lethal diseases, including heart attacks, diabetes, asthma, cancer, osteoporosis, anxiety, depression, insomnia, memory loss and premature aging.

Three-fifths of the world's employees say their job impacts their mental health more than anything else.

At what point does a bad boss become a truly toxic leader? Professor Dolan, a respected scholar in human resources, has trawled decades of research to create "De-Stress at Work".