This results in a rapid increase of testosterone concentration levels in the body, thereby immediately increasing libido.

因而人体睾酮含量水平能够快速提高，进而快速提高力比多。

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They said hormone treatments such as tibolone (Livial) which used male sex hormones called androgens, rather than female hormones, were more successful in increasing libido.

BBC: Sex a turn-off for many UK women