Sherri Mack, RN, BSN, and Elisabeth Mack, RN, BSN, MBA, are visionary nurse leaders and co-founded Holistic Caring® & The Green Nurse® in 2015, a national platform delivering education, clinical guidance, and cannabinoid care. Sherri discovered the power of cannabis when it helped her reclaim her health. Her journey inspired thousands of patients and listeners through her healing work and her 4x award-winning Green Nurse Podcast. Elisabeth found cannabis after a bicycle accident, and left her career as a nurse insurance executive to educate patients and clinicians on the clinical applications of cannabis. Her nurse training manual grew into a published book and comprehensive online programs for healthcare providers. Today, Holistic Caring & The Green Nurse stand alone in their ecosystem to modernize cannabis medicine. Their acquisition of Bloom Hemp CBD completed the vision - offering clinically guided, nurse-approved wellness products. Through the Holistic Caring® Network, they provide free access to education, community, and support for patients and professionals.

As longtime attendees of Patients Out of Time, we hold deep respect for the unique space this organization creates. It’s more than just a conference—it’s a gathering of minds and hearts devoted to the medical cannabis movement. Every time we attend, we’re struck by the depth of the clinical content, the integrity of the research shared, and the opportunity to connect with pioneers in cannabis and hemp science. This organization stands out for its unwavering commitment to the medical needs of all patients—especially those who are too often forgotten or left behind. In a rapidly changing industry, Patients Out of Time reminds us why we do this work: to ensure that compassionate, evidence-based care remains at the heart of cannabis medicine.