
Serena Williams has announced she’s retiring. The tennis star has had a long and decorated career, winning 23 grand slams and establishing herself as one of the most well-known professional athletes in the world. Williams, who is 40, joins a host of other professional athletes who have continued to compete well beyond the typical retirement age for athletes – which is between 28-32 years of age. Other notable athletes still competing at the highest level of their sport after 40 include English cricketer James Anderson (who is 40) and American surfer Kelly Slater (who is 50).
There are many reasons an athlete may choose to retire from sport, such as injury, illness, fitness or family. But a combination of better training, nutrition and recovery techniques may help explain why a growing number of athletes are competing past what was once considered their “prime”.