Pediatric orthopaedic surgeon Dr. Avi Shah highlights the impact of winter on children's bone health, noting reduced sunlight exposure due to colder weather and increased indoor activity. This can lead to lower Vitamin D levels, essential for calcium absorption and strong bones. Dr. Shah advises parents to watch for signs of bone and joint issues like persistent pain or frequent falls, emphasizing early medical consultation to prevent potential long-term orthopaedic complications.