As stated by INC.com, the first step is to give subordinates enough authority and leeway to cope with their own work independently. If you stifle their initiative and ambition with micromanagement, you will fail to equip them with the ability to solve crises and find new, novel solutions.
Allow subordinates to develop individually
Each person needs different training and different development to build resilience to stress and reinforce their strengths. Support subordinates' specific talents and enable them to learn and develop individually over the long term.
Talk openly about mental health
The ability to cope with stress is closely linked to emotional intelligence and the ability to think about feelings and talk openly about them. This is why you must serve as a role model to your subordinates by raising the topic of mental health often. Let them know it is okay to feel stressed or insecure and it is important actively to discuss and address such feelings.