Hi @byhisgrace, you may have seen the video where Dr. Tawk and Dr. Freeman addressed this question at the 24:30 mark. I'll summarize: "We know that aneurysms can affect hormones. The pituitary gland can be affected. Testosterone levels can affect libido. Sleep, social integration, and other common issues can be affected. If there is scarring or injury in the front part of the brain, personality can be affected. This can also cause poor sleep and depression. These are simple issues to screen for and treat.