Zhang Shuai's secret to stay young

The 36-year-old Zhang Shuai's secret to staying youthful is to "be someone who doesn’t drain themselves internally. Physical exhaustion and tough training are fine, but I won’t let my mind and spirit suffer." Despite the hectic life of a professional athlete, Zhang says she makes sure to set aside a little time every day to daydream: "to have a conversation with my inner self and listen to its voice."