In this episode of "Bedside Matters" concerns about 23andMe's potential sale of genetic data, which could compromise the privacy of millions of users if exploited by insurance companies or marketers; a new nasal spray called "Profi," offering nearly 100% protection against viruses like the flu and COVID-19, plus a study reveals the link between multiple surgeries and cognitive decline, particularly in older adults, and discusses the common issue of post-surgery depression. Finally, our caller wants to know about Seasonal Affective Disorder (SAD) and what he can do to manage it.