what is a libido
For other uses, see Sex drive (disambiguation) . Libido (/lÉ¨ËbiËdoÊ/), colloquially known as sex drive, is a person's overall sexual drive or desire for sexual activity. Sex drive is determined by biological, psychological and social factors.ibido (sex drive) is modulated primarily by activity in the mesolimbic dopamine pathway (ventral tegmental area and nucleus accumbens). Consequently, dopamine and the trace amines (mainly phenethylamine and tyramine) that regulate dopamine neurotransmission play a critical role in regulating libido.