On 4/20, an addiction psychiatrist raises red flags around high-potency cannabis. Dr. Libby Stuyt has particular concerns about psychosis as THC levels increase multifold in today's cannabis and wants to raise awareness about the evolution of the drug. Then, for Aging Matters, Ryan meets an octogenarian who has mastered the "dead hang" at her gym in Woodland Park; it's about more than strength. And Colorado Wonders about finding gemstones in our state.