Man boobs increase the risk of a premature death.
Danish experts have found that men with gynaecomastia - swollen breasts - are a third more likely to pass away by the age of 75 compared to non-sufferers.
The risk was ramped up further by men having an underlying illness.
Enlarged breast tissue in men is typically caused by hormone imbalance and it affects around a third to approximately two-thirds of men, depending on their age.
In a landmark study, Copenhagen University Hospital experts examined data from over 23,000 male sufferers of gynaecomastia.
Each was matched with a control group of five men without the condition and all were monitored until their death or June 2021 - depending on whichever came first.
The results equated to a 37 per cent higher risk of early death in men with moobs compared to those without them.
However, the boffins noted that the findings were totally observational, meaning it cannot be proved that the condition is to blame for the increased mortality risk.