You need to restore your Hypothalamus function.
The hypothalamus plays an important role in regulating sexual behavior. This region of the brain links the nervous and endocrine systems and is involved in certain basic behaviors such as eating and aggression. A cluster of neurons in the hypothalamus called the medial preoptic area (MPOA) appears to play a critical role in sexual function and is being intensively studied at the moment. Group member François Guiliano and his colleagues have recently shown that electrical or chemical stimulation of the MPOA causes erections in rats. The MPOA appears to integrate stimuli from many areas of the brain, helping to organize and direct the complex patterns of sexual behavior. The hypothalamus also contains the paraventricular nucleus. Like the MPOA, the paraventricular nucleus acts as a processing center that sends and receives messages from different parts of the brain and spinal cord. The erection-enhancing effects of apomorphine occur when it mimics the actions of the neurotransmitter dopamine and binds to specific receptors in the paraventricular nucleus and the MPOA, thereby turning on proerectile pathways.