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A recent study has found that sperm deteriorates over time as it remains in the body, leading researchers to suggest that men who ejaculate more frequently may have better sperm quality.The study, which combined 115 human studies involving nearly 55,000 men and 56 studies on non-human species, found that the longer men went without sex, the more their sperm showed signs of DNA damage and oxidative stress, and the more tests rated the sperm as less viable and poorer swimmers.The World Health Organization (WHO) recommends men abstain from ejaculating for two to seven days before giving sperm for fertility tests or IVF, but the guidelines were designed to obtain the highest sperm count rather than prioritizing the best quality sperm.Dr. Krish Sanghvi, lead author of the study, said: "In men, the negative effects we found on sperm DNA damage and oxidative damage were large-ish, so we are confident that this is a biologically meaningful and important effect."The study's findings suggest that clinicians and couples should reconsider whether long abstinence is always good, as abstinence leads to deterioration in sperm quality.For couples trying to conceive naturally, a balance between quantity and quality needs to be struck, with abstaining for too long or too little potentially affecting sperm quality and quantity.Experts say that for assisted reproductive technology (ART) treatments, it's having the freshest, most healthy sperm that is probably more important, and that the two to seven days abstinence rule may not be as crucial when IVF treatment is taking place.

Mohamed Salah's final game before announcing his departure from Liverpool FC was a fitting tribute to his legacy. In a match against Galatasaray, Salah scored a goal, showcasing the skills that have made him a legend at Anfield. Throughout his time at Liverpool, Salah has been part of two great trios: the forward line with Sadio Mané and Robert Firmino, and the right side with Jordan Henderson and Trent Alexander-Arnold. His ability to score goals and create chances has been crucial to the team's success. Salah's statistics are impressive: 255 goals for the club, third on the all-time list behind Ian Rush and Roger Hunt. He has scored in 10 games in a row, a club record, and has scored 20 or more goals in a campaign for Liverpool eight seasons in a row. His most important goal was probably the penalty that set Liverpool on their way to victory in the 2019 Champions League final. His greatest goal, however, was his solo run in the 2-2 draw at home against Manchester City in October 2021. As Salah leaves Liverpool, his legacy will live on. He will be remembered as a club legend, and his contributions to the team's success will not be forgotten.

Cooper Lutkenhaus, a 17-year-old high school student from Texas, made history on Sunday by winning gold in the 800m at the world indoor athletics championship. He finished with a time of 1min 44.24sec, 0.14 seconds ahead of Belgium’s Eliott Crestan.Lutkenhaus, who turned 17 in December, broke the previous record for youngest champion held by Ethiopian Mohammed Aman, who was 18 years and 61 days when he won gold in the 800m in 2012.“I came into this knowing I probably wasn’t the favourite, but anytime I step into a final, I believe I have a chance to win,” Lutkenhaus said after his victory. He attributed his win to his youth, saying it gave him the confidence to make a defining move on the third lap.Crestan, who led at the halfway point, praised Lutkenhaus's acceleration, saying he is an incredible talent who could emulate the greats of middle distance running, including David Rudisha.Lutkenhaus's gold was Team USA's fifth of the championships, putting them top of the medal table ahead of Great Britain, who won four.