02. The sex addiction cycle
Sex addiction starts in the mind as a fantasy. The person feels compelled to act it out but feels intense shame afterwards.
Read

03. Physiology of the erection
An erection begins with stimulation. Then impulses from the brain travelling down the spinal column and impulses from the nerves in the penis relax the smooth muscles.
Read

04. Physiology of the erection II
An erection begins with sensory and mental stimulation. Impulses from the brain and nerves in the penis relax the smooth muscles. Take a look at these cross-section images.
Read

05. Male reproductive anatomy
The penis is composed of paired erectile bodies. The interior of the corpus caverosum contains vascular spaces that consist of connective tissue and corporal smooth muscle.
Read

06. Penis size per country
What is the average penis size in different countries? And how do other countries compare with South Africa? Take a look at what international researchers have found.
Read

07. Causes of ED
An erection is the result of a series of psychological and physical events. If a problem occurs at any step in the process, the erection may be absent, insufficient or short-lived.
Read

08. Female reproductive anatomy I
This illustration depicts a cross-section of the female reproductive system.
Read

09. Female reproductive anatomy II
This illustration depicts the outer female genitalia.
Read

10. The anatomy of intercourse
This illustration shows what happens during male-female intercourse.
Read

11. How often do people have sex?
This graph shows the average number of times couples have sex, according to age.
Read