உடலின் தற்காப்பு நடவடிக்கையா வாந்தி? மருத்துவர்கள் கூறுவது என்ன?

The story provides general medical information regarding the physiological function of vomiting as a defense mechanism. As this is a health-related educational piece rather than a breaking news event, it is consistent with standard medical consensus and does not require multi-source wire corroboration.