Anorgasmia is significantly more common in women than in men, which has been attributed to the lack of sex education with regard to womens bodies, especially in sex-negative cultures, such as clitoral stimulation usually being key for women to orgasm.Approximately 25% of women report difficulties with orgasm, 10% of women have never had an orgasm, and 40% or 40–50% have either complained about sexual dissatisfaction or experienced difficulty becoming sexually aroused at some point in their lives. A 1994 study by Laumann et al. found that 75.0% of men and 28.6% of women always had orgasms with their spouse, while 40.2% of men and 79.7% of women thought their spouse always orgasmed during sex. These rates were different in non-marital straight relationships (cohabitational, long-term and short-term heterosexual relationships), with rates increasing to 80.5% for men and 43.0% for women orgasming during sex with their short-term partners, and 69.3% for men and 82.6% for women thinking their short-term partners always orgasmed. Women are much more likely to be nearly always or always orgasmic when alone than with a partner. However, in a 1996 study by Davis et al., 62% of women in a partnered relationship said they were satisfied with the frequency/consistency of their orgasms.
Bruns nystagmus is an unusual type of bilateral nystagmus most commonly occurring in patients with cerebellopontine angle tumours. It is caused by the combination of slow, large amplitude nystagmus (gaze paretic nystagmus) when looking towards the side of the lesion, and rapid, small amplitude nystagmus (vestibular nystagmus) when looking away from the side of the lesion. It occurs in 11% of patients with vestibular schwannoma, and occurs mainly in patients with larger tumours (67% of patients with tumours over 3.5 cm diameter). Bruns nystagmus is also associated with an increased incidence of balance disturbance in patients with vestibular schwannoma. It may be caused by the compression of both flocculi, the vestibular part of the cerebellum, and improvement in both the nystagmus and balance problems occur commonly after removal of the tumour.Bruns nystagmus is named for Ludwig Bruns (1858 – 1915). == References ==