Some 7.5 million people in the US have psoriasis, but white people are diagnosed twice as much as people of color. Could skin tone be a barrier to diagnosis -- and treatment? Alisha Bridges discusses the emotional impact of life with this chronic condition, as well as barriers to treatment she encountered. We also talk to Junko Takeshita, MD, PhD, a researcher at Penn Medicine who's dedicated her career to uncovering  -- and dismantling -- healthcare disparities related to skin diseases.