What are the characters at the beginning of simplified Chinese characters?

Health,

Forgetfulness,

Athletes,

Fitness,

Talkative,

Step,

Robust,

Alive,

Bodybuilding,

Sound,

Wang Jian,

Jiancun,

Athletes,

A healthy horse,

Health,

Healthy autumn,

Healthy officials,

Health,

Jian Yong,

Strong and healthy