Approximately 200 million individuals worldwide are currently living with coronary heart diseases, which not only affect patients but also have an impact on their close family members. These individuals face various physical and emotional challenges in their daily lives, placing them at a higher risk of developing mental illnesses such as depression, anxiety, and Post Traumatic Stress Disorder. Consequently, their struggle becomes even more challenging.    Through our studies, we have delved into the intricate interplay between partners within the coping dyad, revealing the profound impact each individual has on, and is influenced by, their partner. These investigations have yielded compelling findings that underscore the importance of shared experiences, interactions, and support exchanges between partners.
  For instance, our research has shed light on how the mere act of being together in the ambulance en route to the intensive care unit holds significance for the well-being of caregivers (Cornelious et al., 2020). We have also examined the effect of caregivers' support efforts on patients' post-traumatic symptoms (George-Levi, 2022), explored the relationship between caregivers' fear of illness progression and their own post-traumatic stress symptoms (Eisenberg et al., 2022), and underscored the critical role of patients' support in shaping partners' burden (Katz et al., 2023).
   Recently, we embarked on a novel project specifically focusing on patients coping with Left Ventricular Assist Device Implantation (artificial heart), highlighting the indispensable nature of adopting a dyadic perspective in understanding the factors that significantly contribute to the adjustment of both individuals within the coping dyad (Golan et al., 2023). This research further emphasizes the importance of considering the dyadic dynamics in the context of illness and offers valuable insights into factors that influence the well-being and adjustment of both patients and their partners.