Marijuana is now easy to get (and, many think, harmless). Dr. Sanjay Gupta addresses the tough questions about marijuana.

CNN's Dr. Sanjay Gupta looks at U.S. federal laws that consider marijuana a drug with no medicinal value and serious scientists who disagree.

In October 2016, doctors at Montefiore Medical Center separated conjoined twins Jadon and Anias McDonald. CNN's Dr. Sanjay Gupta exclusively followed the boys' journey towards separation and through recovery.

Dr. Sanjay Gupta interviews Ted Turner, the media mogul who founded CNN, who is also a passionate conservationist committed to restoring native wildlife across the United States.

Explore the controversial idea that cannabis could help solve or ease the opioid epidemic. Dr. Sanjay Gupta meets with patients, pioneers and critics.

CNN chief medical correspondent Dr. Sanjay Gupta goes on a nationwide investigation to look at the real-life impact of dozens of deregulations at the EPA. What does it mean for the health of American families?

Dr. Sanjay Gupta searches for the truth about CBD, which has turned into a multi-billion dollar industry.

CNN's Dr. Sanjay Gupta speaks with Dr. Anthony Fauci, Dr. Deborah Birx, Dr. Stephen Hahn and Dr. Robert Redfield to construct an 'autopsy' of our nation's response to the Covid-19 pandemic.

CNN's Dr. Sanjay Gupta takes a comprehensive, in-depth look at the proven science of vaccines amidst the backdrop of Covid-19 and the increasing numbers of parents choosing to not vaccinate their children, even prior to the pandemic.

Dr. Sanjay Gupta looks at the leading theories on Covid's origins and talks to scientists who have spent lifetimes studying viruses to uncover what we know about the origins of the disease that launched a global pandemic.

In 2016 U.S. officials in Cuba reported unexplained concussion-like injuries, which have since spread around the globe. Dr. Sanjay Gupta investigates "Havana Syndrome," its impact on the brain and continuing threats to government officials.

CNN's Dr. Sanjay Gupta investigates the effects of marijuana, following several families who have seen positive effects of marijuana use for their children with Autism.

Nearly a quarter of American adults live with chronic pain. Dr. Sanjay Gupta travels the country to investigate its hidden causes and explore groundbreaking treatments transforming how we understand, manage and prevent lifelong pain.

Xenotransplantation, or transplanting animal organs into humans, could be on the precipice of a breakthrough, and Dr. Sanjay Gupta is speaking with the doctors, geneticists and ethicists on the cutting edge of this groundbreaking research.