How does major life changes increase the risk of becoming ill?

Major life changes, such as divorce, job loss, or the death of a loved one, can lead to increased stress, anxiety, and emotional upheaval, which may weaken the immune system and make individuals more susceptible to illness. The physiological response to stress can elevate cortisol levels, disrupt sleep patterns, and lead to unhealthy coping mechanisms like poor diet or substance use. Additionally, these transitions can create social isolation, further diminishing emotional and physical well-being. Overall, the combination of stress and lifestyle changes during significant life transitions heightens the risk of both mental and physical health issues.