Using a mirror, check your head for hair loss.

照一下镜子，看下你的头上有没有掉头发。

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Check that your head is in line with your spine.

检查你的头和脊椎是否已成一直线不要弯曲。

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Check that your head is in line with your spine.

检查你的头和脊椎是否已成一直线不要弯曲。

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