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Butanone, also known as methyl ethyl ketone (MEK) or ethyl methyl ketone, [a] is an organic compound with the formula CH 3 C(O)CH 2 CH 3. This colorless liquid ketone has a sharp, sweet odor reminiscent of acetone. It is produced industrially on a large scale, but occurs in nature only in trace amounts. [7]
The result is a rate of ketone production higher than the rate of ketone disposal, and a decrease in blood pH. [12] In extreme cases the resulting acetone can be detected in the patient's breath as a faint, sweet odor. There are some health benefits to ketone bodies and ketogenesis as well.
For long-term involuntary sleep deprivation, cognitive behavioral therapy for insomnia (CBT-i) is recommended as a first-line treatment after the exclusion of a physical diagnosis (e.g., sleep apnea). [173] CBT-i contains five different components: cognitive therapy; stimulus control; sleep restriction; sleep hygiene; relaxation.
Lack of sleep has a significant impact on cognitive and physical performance, especially in endurance sports. Long-term sleep deprivation was shown to affect neurobehavioral function, including hallucinations and reduced reaction times, in a study of ultramarathon runners.
Even though the NIH recommends that adults get seven to nine hours of shuteye a night, many of us get far less.
Main health effects of sleep deprivation, [1] indicating impairment of normal maintenance by sleep. Sleep debt or sleep deficit is the cumulative effect of not getting enough sleep. A large sleep debt may lead to mental or physical fatigue, and can adversely affect one's mood, energy, and ability to think clearly.
In organic chemistry, a ketone / ˈ k iː t oʊ n / is an organic compound with the structure R−C(=O)−R', where R and R' can be a variety of carbon-containing substituents. Ketones contain a carbonyl group −C(=O)− (a carbon-oxygen double bond C=O). The simplest ketone is acetone (where R and R' is methyl), with the formula (CH 3) 2 CO ...
The more commonly used ethyl ketone ("ethylketobemidone") is simply called ketobemidone, as it is the only drug of this family to have been marketed. Presumably methylketobemidone produces similar effects to pethidine , such as analgesia and sedation , along with side effects such as nausea , itching , vomiting and respiratory depression which ...