Which of the known benefits of regular exercise can be described as a "pleasant surprise" for researchers?

Question

Quizplus · Accepted Answer

Facilitation of neurogenesis was a pleasant surprise for researchers, as they did not anticipate exercise to have such a profound effect on the growth of neurons in the brain. Other benefits of exercise, such as decreased risk of heart disease and respiratory difficulties, have been well-documented and expected. The decreased risk of migraine headaches is still being explored and is not as widely recognized as a known benefit of exercise.

Which of the Known Benefits of Regular Exercise Can Be