However, he does note that other studies show men apparently have more trouble with respiratory illnesses.
Based on the existing research, Sue concluded that the man flu moniker is "potentially unjust", citing studies that suggest men are not exaggerating their symptoms, but instead truly have weaker immune responses than women.
It also noted that a seasonal influenza study from 2004 to 2010 in Hong Kong found men had higher rates of hospital admission, and a decade-long American observational study that ended in 2007 suggested men had higher rates of flu-related deaths in comparison to women.
The study was essentially an analysis of previous studies. He claims that after examining various studies about men and women's health, that men may be affected by certain illnesses more than women.
And then this: "In an unscientific survey, men suffering from a flu reported taking more time off from work than women".
Those that fear the man flu no matter what the research says should be wary.
Mikheil Saakashvili detained in Kyiv
Photo Supporters of Mikheil Saakashvili gathered outside the detention center where he was being held in Kiev . Sakaashvili is being investigated for alleged support of a criminal organisation, among other charges.
Such data proves that there are tangible reasons behind the excessive displays of vulnerability with which men have become associated, when sick.
That said, there might be an evolutionary benefit to a less robust immune system, he added, as it has allowed men to invest their energy in other biological processes - such as growth, secondary sex characteristics (features that appear during puberty in humans) and reproduction.
It all comes down to our cavemen ancestors - men have weaker immune systems than women which used to be in order to stop them going out hunting when ill. This means men may not be overreacting when complaining about flu symptoms.
It's a pretty small sample, and even Dr. Sue agrees that more research has to be done. [.] Lying on the couch, not getting out of bed, or receiving assistance with activities of daily living could also be evolutionarily behaviours that protect against predators.
After his analysis of man flu-defined as "a cold or similar minor ailment as experienced by a man who is regarded as exaggerating the severity of the symptoms"-Sue had good news for male sufferers everywhere".