Stress can directly undermine health and physical well-being by

Stress could be triggered because of doing hard things, decisions, problems and many more that will make a person think and feel problematic. The stress can directly undermine health and physical well being by having people to start or to engaged in behaviors that are unhealthy. It is because stress makes people feel vulnerable and do things in order to relieve the stress that they have even if it isn't appropriate or good. That's why it is causing a person to engage in unhealthy behaviors.

The answer is ozone layer.