Assertion: immune system | /r/Synonym | body's first line of defense
Facets:
Source sentences:
text: Known as the body's first line of defense, your immune system and lymphatic system help protect you from bacteria, viruses and fungi that cause disease.
text: The immune system is the body’s first line of defense against disease causing pathogens, thus keeping it strong by following a healthy balanced diet, getting enough sleep, keeping stress in check, and being physical and with regular exercise is important to overall health in more than one way.
text: Known as the body's first line of defense, your immune system and lymphatic system help protect you from bacteria, viruses and fungi that cause disease.