Major Effects of Myotonic Dystrophy Fig 2. Cognitive Function: Intellectual Bone: Anomalies impairment, behavioral and psychological disorders, excessive Cardiovascular System daytime sleepiness Heart condition abnormalities arrhymias, cardiomyopathy Vision: Cataracts, retinal damage Gastrointestinal Tract: Swallowing Endocrine System: Diabetes, low issues, abdominal pain, irritable bowel thyroid hormone levels syndrome, constipation/diarrhea, poor nutrition and weight loss, chronic Respiratory System: Breathing infections dificulties, aspiration, sleep apnea nigh risk pneumonia Muscle: Weakness, wasting (atropy) myotonia, pain Skin: Pilomatrixoma Reproductive System in Women Immune: Hypogammalobulinemia Weakened uterine muscle pregnancy-related complications, and Reproductive System in Men gynecological problems Low testosterone levels, erectile dysfuntion, testicular failure and gonadal atrophy