Does being fit keep you healthy? how would being fit be defined, and how far does someone have to go to be considered healthy?

According to the article, when our sleep/wake cycle breaks down, we are at an increased risk for all but which select one: a. respiratory illnesses b. dementia c. diabetes d. heart disease

Which statement is false? a. an extinction burst is the complete cessation of the target behavior after the extinction procedure has started. b. extinction procedures should not be used with behaviors that cause serious injury to the subject. c. if the behavior analyst does not have the ability to control the subject's access to reinforcement, an extinction procedure should not be implemented. d. spontaneous recovery of the target behavior will be short-lived, as long as the extinction procedure remains in effect

Why is cancer dangerous or harmful?