Hello, Yes, disruption of circadian rhythm for a long period may affect the testosterone level. Disturbed sleep or disturbed sleep pattern causes low production of testosterone. Due to instability the body is unable to restore the disturbed hormone levels. Testosterone level increases during deep sleep. You are suggested to stay active outside work. Get clinically examined, HRT may work. For the best hormone function, maintain a healthy routine between healthy diet, work and take quality sleep. Maintain healthy weight and take food that will help to raise the testosterone level like pomegranate, leafy green vegetables, extra virgin olive oil, eggs, chicken, fish, avocados, cocoa, ginger, oysters, fortified plant milk, etc. Exercises regularly, take fat, protein carbohydrate, protein, increase vitamin D intake, exposure to sunlight helps, stay away from anxiety and stress. You should avoid packaged food, processed food, alcohol, for better production of testosterone. Take supplements like Ashwagandha, zinc supplementation, etc. Get connected to a Urologist for pelvic exercises. Medicines like Sildenafil, tadalafil, etc., are also effective to help better erection. Take care. Hope I have answered your question. Let me know if I can assist you further. Regards, Dr. Nupur K., General & Family Physician