Question

source a: source b: which summary statement best synthesizes information from the two sources? what writer norman cousins discovered on his own, researchers have recently been trying to prove through scientific study: that laughter can relieve pain, reduce depression, promote relaxation, boost the immune system, improve blood flow and breathing, lower blood pressure and glucose levels, and even slow the growth of cancer cells. “studies indicate that participating in laughter therapy is beneficial in terms of disease control,” says william fry, m.d., professor emeritus at the stanford university school of medicine. -“laughter yoga to improve health? it’s no joke,” sally abrahams laughter can help improve blood flow and breathing when properly applied. laughter has been studied by both writers and scientific researchers. laughter triggers the production of neurochemicals that make you feel calm. laughter can relieve many conditions, such as stress, by stopping the release of stress hormones.

Explanation:

The text from Source A lists multiple health - related benefits of laughter such as pain relief, depression reduction, immune system boost etc. We need to find the option that best sums up these various benefits. Option A only mentions blood flow and breathing. Option B focuses on who has studied laughter. Option C only mentions the production of neurochemicals. Option D best synthesizes the idea that laughter can relieve many conditions like stress by stopping stress hormone release, which is in line with the overall message of the source about laughter's wide - ranging health benefits.

Answer:

Laughter can relieve many conditions, such as stress, by stopping the release of stress hormones.