Horny goat weed is a leafy plant that is native to Asia and the Mediterranean region. It has a long history of use in traditional Chinese medicine. According to folklore, horny goat weed's reputed aphrodisiac qualities were discovered when a Chinese goat herder noticed increased sexual activity in his flock after they ingested the weed.

In the research:

• The men noted overall enhancing satisfaction with their sex life
• They reported a increase in desire to engage in sexual activity
• Some men also reported an increase in their partner's satisfaction - presumably from their improved performance

According to research, Horny Goat Weed can reduce an enzyme called cetylcholinesterase (AChE). AChE rapidly stops neurotransmission at cholinergic synapses like those found in the brain and at neuromuscular junctions, which are needed for speedy responses in the neuromuscular system. By restraining AChE, Horny Goat Weed supports higher levels of the key cholinergic neurotransmitters associated with sexual arousal.

In the researches, Horny Goat Weed has not shown any undesirable side effects.

Yes they can.