After three hours of playing a physically exhausting professional tennis match,Chitra began to experience an elevated mood and a surge of happiness.It is likely that her feelings were most directly linked to the release of

Question

Quizplus · Accepted Answer

Endorphins are natural painkillers and pleasure-inducing chemicals that are released in response to physical activity, including intense exercise like playing tennis. Therefore, it is likely that Chitra's surge of happiness was due to the release of endorphins.

After Three Hours of Playing a Physically Exhausting Professional Tennis