"Gossip as high-fructose corn syrup."

A theory:

There's this idea that modern diseases of excess are due to the human metabolism being evolutionarily keyed for need. Our bodies haven't become accustomed to the wide availability of nutritionally empty yet calorie-rich foods, hence the obesity epidemic.

Maybe everyone's "social metabolism" is different. Some folks can say and hear whatever they want and always feel great. Others have to be more mindful....