Libido, also known as sex drive, is the desire for sexual activity. It is a complex phenomenon that is influenced by a variety of factors, including hormones, psychology, and physical health. Libido can vary from person to person and can fluctuate over time. It is also important to note that libido is not the same as sexual attraction. While libido is the desire for sexual activity, sexual attraction is the feeling of being drawn to a specific person. Here are a few things you can do to help build your libido.