Smoking marijuana causes fertility problems because it makes men's sperm 'lazily swim in circles' say experts
Men who smoke too much marijuana could face fertility problems because the drug makes sperm 'mellow' causing it to 'swim in circles'.
Cannabis - which is the most widely-used illegal drug in Britain - tends to leave users feeling chilled out and relaxed.
But now researchers have revealed that it has the same effect on sperm and regular weed smoking can cut counts of the cells by as much as a third.
Dr Victor Chow, of the University of British Columbia in Canada, said: 'The weight of the evidence is that marijuana probably has a negative impact not only for sperm counts but sperm... read more
- 03:31 The best Amazon Black Friday laptop deals 2017 on Samsung, ASUS...
- 03:29 Burberry: How Christopher Bailey rescued the brand with the...
- 03:24 Trump-Russia investigation: Michael Flynn's lawyers 'split from Trump'
- 03:18 Jimi Manuwa EXCLUSIVE: David Haye called out by UFC star - let’s...
- 03:18 Bargain World set to close less than a year after opening
- 03:11 Manus Island: Buses of refugees leave former Australian camp
- 03:05 Conor McGregor receives big call out as Nurmagomedov slams champ
- 02:53 We want our garden back, says couple
- 02:53 F1 news: Daniel Ricciardo reveals 2018 plans and reveals what he...
- 02:53 Salvation Army counting on bank staff to make a difference
- 02:53 Journey’s end for railway station.
- 02:44 Champions League draw: Who can Man Utd, Man City, Liverpool Chelsea...
- 02:44 Bernard Tomic offered Australian Open wildcard chance… but he...
- 02:38 Ronnie O’Sullivan: I am glad I haven’t won £1million
- 02:38 Eight 'North Korean fishermen' wash ashore in Japan
- 02:36 VOTE: What’s your biggest motoring bugbear?
- 02:36 7 brilliant Nottinghamshire Instagram accounts that you need to follow
- 02:36 Concerns for Nottinghamshire’s home schooled children
- 02:36 £295 court bill for £15 of cannabis in Mansfield
- 02:36 Drunk Worksop wedding guest borrowed car and ended up on pal’s lawn
- 02:36 Notts child sexual abuse reports increase
- 02:36 Jail for banned driver who walked out of Mansfield court and drove off
- 02:36 Is it too soon to put the Christmas decorations up?
- 02:36 The best Black Friday deals 2017
- 02:36 Win family ticket for panto
- 02:27 Are mince pies too boozy for children?
- 02:27 Empty homes spike in London commuter belt
- 02:27 'Sadistic' couple jailed for campaign of child abuse
- 02:27 Doctor Who: Tom Baker returns on camera for 1979 Shada serial
- 02:16 Eric Cantona likens Manchester United midfielder Paul Pogba to Real...