The topic of 'Parenting and communication' is closely related to the podcast episodes provided, as they both explore the challenges and strategies involved in effectively co-parenting and communicating with a difficult ex-partner, particularly one with narcissistic tendencies.

The first episode, '504- How Cannabis Use Affects ADHD Symptoms and Sleep in Adolescents', emphasizes the importance of open communication, setting boundaries, and involving adolescents in finding collaborative solutions to promote healthier behaviors and reduce problematic cannabis use.

The second episode, 'How to Effectively Co-Parent with a Narcissist', provides insights and strategies for effectively co-parenting with a narcissistic ex-partner, including effective communication strategies, parenting approaches, and maintaining stability for children.