做了爸爸后会发胖
Story highlights
- A regular 6-foot-tall man living with his child gained an average of 4.4 pounds, after being a father for the first time, the study says
- For "nonresident" dads, who lived in a different house than their child, the average weight gain was 3.3 pounds
- Change in BMI for nonfathers was attributed solely to age, says the study