Tennis star Taylor Townsend used to always do the most. At 30, she's training less to extend her career.

Tennis player Taylor Townsend, at age 30, has adopted a new approach to her career by reducing her training intensity to prolong her professional longevity. She balances her tennis career with side ventures, including a YouTube series called 'Down the T' and a clothing line, which she says provide creative energy that benefits her on the court. Townsend believes that having outlets beyond tennis helps her stay motivated and perform at a high level.

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