the authors found that the particular bacterial population that thrives in the high-fat regime persists in the gut even once the mice have returned to normal weight and normal metabolic function after a dieting cycle. This leaves them more susceptible to weight gain
Because this is why people get fat. From eating fat. In other news, eating sugar causes diabetes.
It means fake, as in not real, you know fake.
Exactly. Like when someone is pushing an agenda across multiple "news" sites. Like the sudden outbreak of stories about "fake news" stories.
egrep patterns are full regular expressions; it uses a fast deterministic algorithm that sometimes needs exponential space. -- unix manuals