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Illustration: Rebecca Zisser/Axios

In 2016, multiple studies found that youth athletes who specialized in one sport and played it year round (as opposed to being multi-sport athletes) were at significantly higher risk of suffering an overuse injury.

Why it matters: This has become an increasingly alarming issue since those studies were released — particularly when it comes to basketball, the most popular youth sport in America.

  • Today's young players are faster, stronger and play more basketball than ever before — but repetitive impact on and usage of the same muscles and bones leave them injury prone.
  • Even the most athletically-gifted players are physically broken down by the time they reach the NBA. Proof: The four highest tallies of games missed by young players in their first two pro seasons have occurred in the past four years.
"They have more miles at a younger age and then, when they get to the NBA, they're less mature structurally and physically. Even though they look like giants, they just can't tolerate as much."
UNC sports science expert Darin Padua, via ESPN

The big picture: Kids who play basketball consistently between ages 7 and 19 could play more than 1,000 organized games, according to estimates. For reference, 29-year-old James Harden has played 881 games in his NBA career — and that includes the playoffs.

  • Meanwhile, Kobe Bryant says he didn't start intensely training until age 15 and barely played organized games during the summer — evidence of just how much has changed over the generations.
  • "You try to overload these kids and get them to be the best in one year. It's just absolutely ridiculous," he told ESPN.

A potential solution: Three years ago, the NBA and USA Basketball released their first-ever guidelines for youth basketball. One of their main recommendations: delaying specialization until at least age 14.

  • Yes, but: Enforcing those guidelines is no easy task. After all, while Little League has pitch counts, there's no equivalent on the hardwood.

The bottom line: While basketball presents the most striking case, specialization can lead to heightened injury risk across all sports.

  • When you add in the fact that it can also result in burnout, it's hard to argue against playing multiple sports at the youth level (or at least abandoning the "embrace the grind" ethos).

Go deeper

Updated 7 hours ago - Politics & Policy

U.S. sounds alarm on Ukraine

Conscripts line up at a Russian railway station yesterday before departing for Army service. Photo: Sergei Malgavko/TASS via Getty Images

The Biden administration is "deeply concerned" by new intelligence — detailed for Axios and other outlets — showing Russia stepping up preparations to invade Ukraine as soon as early 2022.

Why it matters: Most of this was known from public sources and satellite imagery, but the administration is sending a stronger signal by releasing specific details from the intelligence community.

CNN fires Chris Cuomo

Photo: Kevin Mazur/Getty Images for CNN

CNN said Saturday evening it has fired one of its star anchors, Chris Cuomo, following new revelations from a legal review made by the company into Cuomo's involvement in the management of his brother's sexual harassment scandal.

Why it matters: Saturday's firing speaks to how much pressure CNN was under by employees and critics to address Cuomo's behavior.

Updated 9 hours ago - Energy & Environment

Electric car prices could go up before they come down

Illustration: Eniola Odetunde/Axios

The secret to affordable electric vehicles is cheaper batteries. But after years of falling prices, battery costs are now headed in the wrong direction.

Why it matters: Costlier batteries could drive up the price of electric vehicles — threatening the auto industry's transition away from fossil fuels, and, in turn, society's fight against climate change.