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  2. Letrozole - Wikipedia

    en.wikipedia.org/wiki/Letrozole

    Letrozole, sold under the brand name Femara among others, is an aromatase inhibitor medication that is used in the treatment of breast cancer for post-menopausal women. [ 1 ] It was patented in 1986 and approved for medical use in 1996. [ 4 ]

  3. Nocturnal penile tumescence - Wikipedia

    en.wikipedia.org/wiki/Nocturnal_penile_tumescence

    The cause of nocturnal penile tumescence is not known with certainty. In a wakeful state, in the presence of mechanical stimulation with or without an arousal , erection is initiated by the parasympathetic division of the autonomic nervous system with minimal input from the central nervous system. [ 5 ]

  4. Sleep deprivation - Wikipedia

    en.wikipedia.org/wiki/Sleep_deprivation

    The presence or lack of insomnia symptoms did not modify the effects of sleep duration in this study. [ 83 ] The United Kingdom Biobank studied nearly 500,000 adults who had no cardiovascular disease, and the subjects who slept less than six hours a day were associated with a 20 percent increase in the risk of developing myocardial infarction ...

  5. Non steroidal aromatase inhibitors - Wikipedia

    en.wikipedia.org/wiki/Non_steroidal_aromatase...

    Letrozole has a standard daily dose of 2,5 mg and the drug has around 99,9% oral bioavailability. That means that the drug is absorbed fast and entirely. Intake of food does not affect the extent of absorption, but it has a small reducing effect on the rate of absorption.

  6. Late-onset hypogonadism - Wikipedia

    en.wikipedia.org/wiki/Late-onset_hypogonadism

    As of 2016, the International Society for the Study of the Aging Male defines late-onset hypogonadism as a series of symptoms in older adults related to testosterone deficiency that combines features of both primary and secondary hypogonadism; the European Male Aging Study (a prospective study of ~3000 men) [10] defined the condition by the presence of at least three sexual symptoms (e.g ...

  7. Hypnic jerk - Wikipedia

    en.wikipedia.org/wiki/Hypnic_jerk

    The causes of hypnic jerk are yet unclear and under study. None of the several theories that have attempted to explain it have been fully accepted. [ 9 ] One hypothesis posits that the hypnic jerk is a form of reflex , initiated in response to normal bodily events during the lead-up to the first stages of sleep, including a decrease in blood ...

  8. Idiopathic hypersomnia - Wikipedia

    en.wikipedia.org/wiki/Idiopathic_hypersomnia

    Absence of other causes of hypersomnia; The presence of positive MSLT tests. [32] [33] [34] The latest ICD-10 defines IH with long sleep time as a neurological disorder that is a rare sleep disorder characterized by prolonged sleep at night and extreme sleepiness during the day. There are no apparent causes. This disorder affects the ability to ...

  9. Fatal insomnia - Wikipedia

    en.wikipedia.org/wiki/Fatal_insomnia

    Fatal insomnia is an extremely rare neurodegenerative prion disease that results in trouble sleeping as its hallmark symptom. [2] The majority of cases are familial ( fatal familial insomnia [FFI]), stemming from a mutation in the PRNP gene, with the remainder of cases occurring sporadically ( sporadic fatal insomnia [sFI]).