I'm worried because my mom's oxygen levels drop when she sleeps. The doctors mentioned that her lungs aren't expelling enough oxygen when she breathes out. She's 67 years old, weighs 95 kg, and is about 5 feet tall. Do you have any advice on what we can do to help her?

Your mother's condition, known as sleep-related hypoxemia, may be related to obesity-hypoventilation syndrome (OHS) or sleep apnea, given her weight and age; consider consulting a pulmonologist or sleep specialist for a thorough evaluation, including a sleep study, and potential treatments like continuous positive airway pressure (CPAP) therapy, oxygen supplementation, or weight loss strategies to improve her oxygen levels and overall health.