Are Jefferson Curls Dangerous? The Spinal Flexion Debate w/ Alex Sterner

Are Jefferson curls dangerous? Are they a safe way to train spinal flexion, or does loaded spinal flexion increase the risk of things like a herniated disc? Jefferson curls have been exploding in popularity over the past couple of years on social media. Some people use their shock factor just to spike engagement, some see genuine uses for the Jefferson curl in strengthening the lower back, and others think it's one of the most dangerous exercises out there. I had a commenter ask for my thou...