question: Hello doctor, I am a 49-year-old male, 6'4" and 300 lbs. I take very low doses testosterone, an estrogen blocker, and HGH. All very low dosages. I will be on a six hours international flight tomorrow and I am concerned about some health risks. I have high levels of the following: RBC of 6.61, hemoglobin of 19, hematocrit of 57. I tried to have blood drawn today but the facility cancelled the appointment. Will aspirin help reduce the risks of stroke?