The genie who granted Mark's wish to "be a famous actor" really went above and beyond. He was now the most famous actor of the 20th century! The tits would take some getting used to, but once the shock wore off, Mark would find his new life as Marilyn
The Earth has been naturally radioactive since its formation. This natural radioactivity is found in the soil, rocks, air, and food, generating internal heat and contributing to environmental radioactivity.