Cortisol helps you maintain energy and health during stressful times. But over a long period of time, cortisol can O wear away your immune system
• increase your chance for diabetes
• increase your chance for long-term good health
• Increase your brain's ability to process

Which of the following statements concerning cancer and mutations is correct? a: cancer can only occur with a mutation in a somatic cell. b: usually, multiple mutations are required in different genes to cause cancer. c: none of the other answer options is correct. d: cancer can only occur with a mutation in a germ cell. e: usually, a single mutation is all that is required to cause cancer.