Experience
E-E-A-TExperience is the E-E-A-T component representing the author's first-hand knowledge of a topic: demonstrated through case studies, original photos, data from personal projects, and personal stories.
Experience > Expertise in YMYL. Google prefers 'I tested 5 methods and here are the results' over 'according to research...'. In a case study, Salve's cortisol page lost points for lacking patient case studies.
As a quick win, add a patient diagnostic pathway or client case study. Experience directly connects to Information Gain; first-hand experiences generate unique data unavailable from other sources, which AI Search rewards.
In practice, add at least one first-hand experience element to every YMYL article — your own photo, test result, patient/client story. For law firms: anonymized case studies describing the problem, solution, and outcome are the strongest Experience signal.