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  2. Causes of seizures - Wikipedia

    en.wikipedia.org/wiki/Causes_of_seizures

    Breakthrough seizures are more likely with a number of triggers. [54]: 57 Often when a breakthrough seizure occurs in a person whose seizures have always been well controlled, there is a new underlying cause to the seizure. [55] Breakthrough seizures vary. Studies have shown the rates of breakthrough seizures ranging from 11 to 37%. [56]

  3. Effects of nicotine on human brain development - Wikipedia

    en.wikipedia.org/wiki/Effects_of_nicotine_on...

    A 2015 review concluded that "Nicotine acts as a gateway drug on the brain, and this effect is likely to occur whether the exposure is from smoking tobacco, passive tobacco smoke or e-cigarettes." [25] Nicotine may have a profound impact on sleep. [26] The effects on sleep vary after being intoxicated, during withdrawal, and from long-term use ...

  4. Generalized tonic–clonic seizure - Wikipedia

    en.wikipedia.org/wiki/Generalized_tonic–clonic...

    The postictal phase causes are multifactorial to include alteration of cerebral blood flow and effects on multiple neurotransmitters. [10] These changes after a generalized tonic–clonic seizure cause a period of postictal sleep with stertorous breathing. Confusion and total amnesia upon regaining consciousness are also usually experienced and ...

  5. Health effects of tobacco - Wikipedia

    en.wikipedia.org/wiki/Health_effects_of_tobacco

    This is an accepted version of this page This is the latest accepted revision, reviewed on 4 October 2024. Circumstances, mechanisms, and factors of tobacco consumption on human health "Health effects of smoking" and "Dangers of smoking" redirect here. For cannabis, see Effects of cannabis. For smoking crack cocaine, see Crack cocaine § Health issues. "Smoking and health" redirects here. For ...

  6. Nicotine poisoning - Wikipedia

    en.wikipedia.org/wiki/Nicotine_poisoning

    The LD 50 of nicotine is 50 mg/kg for rats and 3 mg/kg for mice. 0.5–1.0 mg/kg can be a lethal dosage for adult humans, and 0.1 mg/kg for children. [19] [20] However the widely used human LD 50 estimate of 0.5–1.0 mg/kg was questioned in a 2013 review, in light of several documented cases of humans surviving much higher doses; the 2013 review suggests that the lower limit causing fatal ...

  7. Cerebral hypoxia - Wikipedia

    en.wikipedia.org/wiki/Cerebral_hypoxia

    Confusion, difficulty speaking, seizures. Cerebral hypoxia is a form of hypoxia (reduced supply of oxygen), specifically involving the brain; when the brain is completely deprived of oxygen, it is called cerebral anoxia. There are four categories of cerebral hypoxia; they are, in order of increasing severity: diffuse cerebral hypoxia (DCH ...

  8. Convulsion - Wikipedia

    en.wikipedia.org/wiki/Convulsion

    Convulsion. A convulsion is a medical condition where the body muscles contract and relax rapidly and repeatedly, resulting in uncontrolled shaking. [1] Because epileptic seizures typically include convulsions, the term convulsion is often used as a synonym for seizure. [1] However, not all epileptic seizures result in convulsions, and not all ...

  9. Nicotine dependence - Wikipedia

    en.wikipedia.org/wiki/Nicotine_dependence

    A National Institute on Drug Abuse video entitled Anyone Can Become Addicted to Drugs. [21]Nicotine dependence is defined as a neurobiological adaptation to repeated drug exposure that is manifested by highly controlled or compulsive use, the development of tolerance, experiencing withdrawal symptoms upon cessation including cravings, and an inability to quit despite harmful effects. [9]