In this episode of Intelligent Medicine, Dr. Ronald Hoffman discusses the latest health stories, focusing on the promising use of the drug leucovorin, a potent form of vitamin B9, in treating autism. He reviews the research of Dr. Richard Fry and others exploring the role of cerebral folate deficiency in autism and how leucovorin may help alleviate symptoms. Dr. Hoffman also addresses the increased risk of sudden cardiac death associated with long-term use of antidepressants, based on new studies. Additionally, he highlights a recent FDA warning about severe itching as a withdrawal symptom from stopping antihistamines like Zyrtec and Xyzal after long-term use. The episode concludes with discussions on natural approaches to mitigate these health concerns and the potential benefits of quercetin for musculoskeletal health.