![Declan Hill on Twitter: "#Harvardboxing Working out with pals at the historic Harvard Boxing club. Great fun and good work out. https://t.co/EQKW0kBOUr" / Twitter Declan Hill on Twitter: "#Harvardboxing Working out with pals at the historic Harvard Boxing club. Great fun and good work out. https://t.co/EQKW0kBOUr" / Twitter](https://pbs.twimg.com/media/DMXcz1nWkAAspHy.jpg:large)
Declan Hill on Twitter: "#Harvardboxing Working out with pals at the historic Harvard Boxing club. Great fun and good work out. https://t.co/EQKW0kBOUr" / Twitter
![A recent Harvard study found men who wore boxers had about 25% more sperm than those who wore briefs A recent Harvard study found men who wore boxers had about 25% more sperm than those who wore briefs](https://cdn.businessinsider.nl/wp-content/uploads/2019/04/d9fc0ce46d08730bb448b549e64578e4edd74ad2.jpg)
A recent Harvard study found men who wore boxers had about 25% more sperm than those who wore briefs
![Wladimir Klitschko to become lecturer at Harvard University after four years at the Swiss university of St Gallen | The Sun Wladimir Klitschko to become lecturer at Harvard University after four years at the Swiss university of St Gallen | The Sun](https://www.thesun.co.uk/wp-content/uploads/2018/09/NINTCHDBPICT0003957403731.jpg)
Wladimir Klitschko to become lecturer at Harvard University after four years at the Swiss university of St Gallen | The Sun
![Boxers or briefs? Loose-fitting underwear may benefit sperm production | News | Harvard T.H. Chan School of Public Health Boxers or briefs? Loose-fitting underwear may benefit sperm production | News | Harvard T.H. Chan School of Public Health](https://www.hsph.harvard.edu/news/wp-content/uploads/sites/21/2018/08/boxers.jpg)
Boxers or briefs? Loose-fitting underwear may benefit sperm production | News | Harvard T.H. Chan School of Public Health
![Boxers or briefs? Largest-ever study shows boxers may beat briefs for baby-making - Good Morning America Boxers or briefs? Largest-ever study shows boxers may beat briefs for baby-making - Good Morning America](https://s.abcnews.com/images/Health/boxers-briefs-underwear-gty-tthg-180808_hpMain_16x9_992.jpg)