Ataxia Telangiectasia (A-T) is a rare, progressive genetic disorder that affects numerous systems in the body, most notably the neurological and immune systems. The profound impact of this condition extends beyond physical health, presenting significant psychological challenges that often remain inadequately addressed. Individuals with A-T and their families face not only the complexities of managing physical symptoms but also the emotional and mental toll associated with living with a degenerative disease. As a mental health professional, I have observed how critical it is for those with chronic conditions like Ataxia Telangiectasia to receive psychological support that is tailored to their specific needs. Cognitive Behavioral Therapy (CBT) has emerged as one of the most effective tools in providing this support, helping individuals manage emotional distress, develop coping strategies, and improve their overall quality of life. However, CBT for individuals with genetic and degenerative conditions requires unique considerations that go beyond standard therapeutic models. This book aims to bridge the gap between the physical and psychological aspects of Ataxia Telangiectasia by providing a comprehensive guide to the use of CBT in supporting individuals with A-T. It explores not only the biological foundations of the disorder but also delves deeply into the cognitive and emotional challenges it presents. Psychological Support by Cognitive Behavioral Therapy for Ataxia Telangiectasia is designed for mental health professionals, caregivers, and those personally affected by A-T. By integrating the latest findings in genetics, behavioral science, and therapeutic techniques, this book offers a multi-faceted approach to psychological care, focusing on practical tools that can be implemented in daily life. As you read through these pages, my hope is that you will gain not only a deeper understanding of Ataxia Telangiectasia but also feel equipped to support the mental well-being of those navigating this challenging journey. Through personalized therapy and resilience-building strategies, we can offer a more holistic approach to care—one that addresses both the mind and body. This book is written with the belief that individuals with A-T, like all of us, deserve the best support possible for their mental health, empowering them to lead fulfilling lives despite the challenges they face.