Radiation therapy could be of two types, external and internal. In external therapy, the brain tumor is targeted with high-energy radiation beams.Apex Vitality Mastermind This treatment is given for a few minutes for days a week and for to weeks, depending on the size and type of tumor. Internal radiation is done by implanting a small radioactive capsule inside the tumor. This treatment might take several weeks and would require hospitalization for that period.http://guidemesupplements.com/apex-vitality-mastermind/