Assertion: laughter | /r/CapableOf | boost immune system
Facets:
Source sentences:
text: Laughter Boosts Immune System and Helps Fight Cancer
text: Laughter boosts the immune system.
text: Researchers have found that laughter actually boosts the immune system, increasing the number of antibody-producing T cells.
text: Laughter reduces stress, boosts the immune system, and is good for the heart.