Man Flu : A Man’s illness

The phrase, which is gaining popularity among American women, highlights the irony that a man with perhaps the same level of cold symptoms as a woman, will dramatize his sniffles as if they were a far more serious ailment.

Honestly, I don’t know what they are talking about in this article.

But seriously, if you read on there is a possible reason:

…He added that there is no hard evidence that proves a difference between how men and women experience colds. But according to Raison, studies have shown that while women are more likely to experience depression under emotional stress, men are most vulnerable when they are sick.