Understanding the seasonal patterns of sperm could improve fertility treatments, by optimising the timing of treatment, the reasearchers say.
Most Recent Articles
Dubois refuses world champion Wardley's fist bump
Daniel Dubois refuses a fist bump from world champion Fabio Wardley at a lively news conference in London to promote their world title fight in May.
Bord consortium pull out of Sheff Wed takeover
A consortium led by former professional poker player James Bord pulls out of a takeover of Sheffield Wednesday
Met apologises to Commons Speaker for sharing Mandelson tip-off
Sir Lindsay Hoyle tells MPs he was acting "in good faith as is my duty and responsibility" as he felt information was "relevant".
Man accused of driving wife to suicide claims she lied about abuse, jury told
Christopher Trybus, 43, is charged with manslaughter, coercive control and two counts of rape.
John Lewis pulls out of housebuilding business
The retailer began expanding into housebuilding in 2020 but it is scrapping those plans to focus on retail instead.
Sri Lanka collapse against New Zealand to exit T20 World Cup
Co-hosts Sri Lanka are out of the T20 World Cup after collapsing to a 61-run defeat by New Zealand in Colombo.
Broadcasting racial slur by Baftas guest with Tourette's was 'serious mistake', BBC says
The BBC's director general tells its Executive Complaints Unit to complete a fast-tracked investigation.
Greaves first woman to hit nine-darter on PDC ProTour
Beau Greaves makes history with the perfect leg in her Players Championship 6 clash against Mensur Suljovic in Leicester.
'Fear is everywhere': BBC reports from Mexican city turned into war zone by drug cartel feud
Culiacán in northern Mexico has seen a surge in violence as rival factions of the Sinaloa cartel battle for control.
Swiss bar fire victims to get solidarity payout
The so-called solidarity contribution will go to each of the 115 injured and the families of the 41 who died.
UK government denies Chagos Islands deal is paused, after minister said it was
It come after a minister said the UK is discussing "concerns" with the US, after President Trump criticised the deal.
Mitchell ruled out in England Six Nations blow
England's first-choice scrum-half Alex Mitchell is ruled out of the remainder of their Six Nations campaign with a hamstring injury.
'Jekyll and Hyde' killer guilty of shooting ex-colleague on remote country path
Former gamekeeper David Campbell murdered Brian Low in Aberfeldy two years ago then tried to cover his tracks.
Household energy bills to fall in April after charges shake-up
Changes announced in the Budget mean all energy bills will see some kind of reduction, but it will vary.
Man arrested after 'axe carried into mosque'
Manchester Central Mosque said the "swift actions of its volunteers" had "contained the situation".
Life sentence for man who shook girlfriend's five-month-old baby to death
Thomas Morgan's "rage-filled attack" left the five-month-old boy with catastrophic injuries.
UK records warmest day of the year as temperatures climb above 18C
After a relentlessly wet start to the year the UK has recorded its warmest day of the year as many places bask in the late winter sunshine.
Starmer promises to look at making student loans 'fairer'
Conservative leader Kemi Badenoch said the system had become a "debt trap" for graduates.
Uefa rejects Benfica appeal over Prestianni ban
Gianluca Prestianni will miss the second leg of Benfica's Champions League tie against Real Madrid after Uefa reject the club's appeal against his suspension.
Trump keeps world waiting on his plans for Iran after State of the Union
The next round of talks between the US and Iran in Geneva on Thursday could be decisive in the president's decision-making.