LeBron's $1.5M investment in his body is paying dividends

How exactly does LeBron James continue to defy Father Time?

The Cleveland Cavaliers superstar is 33 years old, in his 15th NBA season, and has logged more than 53,000 minutes in the regular season and playoffs, yet he's showing few signs (if any) of slowing down.

According to one of his closest friends and business partners, Maverick Carter, James has continued to dominate because he invests an incredible amount of time, effort, and resources in his body, spending roughly $1.5 million annually.

Carter said, via HoopsHype's Alex Kennedy, that James uses cryotherapy, hyperbaric chambers, NormaTec leg boots, and private treatments with liquid nitrogen, among other methods, to promote optimal performance and recovery.

The four-time MVP not only has access to one of pro sports' largest player-support staffs with the Cavaliers, but also his own world-class team of professionals, including personal chefs, masseuses, trainers, and a biomechanist.

He doesn't just throw money at services, either, as the three-time champion does his part in following a strict training routine and diet.

"It's every day. Around the clock every single day, working on my body," James recently told ESPN's Brian Windhorst. "Either with treatment or working on my body in the weight room. Continuing just to build strength throughout the season when everybody else is kind of tearing down ... not putting too much pounding on my legs when I'm on the court, but being very efficient. I've kind of figured that out in my 15th season."

Related: LeBron becomes 3rd player to score 2,000 points in 10 seasons

The investment is clearly paying off, with James having one of the best seasons of his illustrious career and producing highlight-reel dunks and dimes on a nightly basis. The proud owner of multiple records, such as being the youngest player to score 30,000 points, is now reaching milestones like being the oldest player to record 2,000 points, 500 rebounds, and 500 assists in a season.

The 14-time All-Star, who has never missed time with a significant injury, has yet to sit out for the Cavs with just nine games left on the regular-season slate. He's averaging a career-high 9.1 assists to go with 27.5 points, 8.6 rebounds, 1.5 steals, and a block over 37.1 minutes in 73 games, and has led the third-place Cavaliers to five straight wins.

James is expected to decline his $35.6-million player option to become a free agent this summer.