Udonis Haslem credits LeBron for longevity on the court.
Haslem learned body maintenance from LeBron in Miami.
LeBron's commitment to fitness allows him to excel at 38.
Haslem, 42, is still in good shape thanks to James' guidance.
James' NBA production is unmatched for his age and experience.
In absence of Davis, LeBron leads the Lakers to a 4-4 record.
The Lakers are currently on a two-game winning streak at 16-21.
James' contributions are key to the Lakers' recent victories.
Heat's Haslem started a game this season, and LeBron scored 47 on his birthday.