Has Everyone Recently Gained Weight

It seems everyone I talk to these days has just recently gained weight. I never know what to say when people tell me that. I am not sure why people tell me that they just recently gained weight and a mere 6 months ago were 40 pounds lighter. I am inclined to think that there are many people in this world that lie about their weight. Not that the mean to lie to me necessarily but maybe they are lying to themselves about how they got to their particular state and are looking for affirmation.