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Infrasound Raised Cortisol and Irritability Without Conscious Detection

MHD featured image for infrasound, cortisol, and negative mood appraisal.

A 36-person experiment found that 18 Hz infrasound raised salivary cortisol and negative mood appraisal even though participants did not detect the infrasound above chance (p = 0.241).1 The result is a controlled acute signal, not proof that every real-world low-frequency noise complaint is physiologically caused by infrasound. Research Highlights Cortisol rose with infrasound: Infrasound …

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Vyvanse Side Effects & Adverse Reactions (List)

Vyvanse (Lisdexamfetamine) is a prodrug comprised of the amino acid L-lysine coupled with dextroamphetamine, hence its chemical name “lis-dexamfetamine.”  As a prodrug, Vyvanse is inactive until ingested and enzymatically metabolized into l-lysine (an amino acid) and dextroamphetamine (a psychostimulant), the latter of which has been deemed effective for the treatment of ADHD and binge eating …

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Adrafinil Side Effects & Adverse Reactions (List)

Adrafinil (Olmifon) is a eugeroic agent originally synthesized in the 1970s by chemists at Group Lafon, a pharmaceutical company based in France.  Following its synthesis, researchers discovered that adrafinil induced wakefulness in humans, and by the mid-1980s, it was being marketed as an experimental treatment for narcolepsy.  Though its exact pharmacodynamics aren’t fully elucidated, adrafinil …

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Phenibut Withdrawal Symptoms: List of Possibilities

Phenibut (brand name “Noofen”) is a neuropsychiatric drug originally synthesized in St. Petersburg, Russia by a team of researchers at the Department of Organic Chemistry of the Herzen Pedagogic Institute.  By the 1960s, phenibut was introduced as a pharmaceutical agent in Russia for the treatment of various medical conditions including: anxiety, insomnia, and PTSD.  Since …

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Noopept Side Effects & Adverse Reactions (List)

Noopept (N-phenylacetyl-L-prolylglycine ethyl ester) is a synthetic peptide manufactured in Russia by JSC LEKKO Pharmaceuticals.  Chemically, noopept is a hydrophilic proline with a dipeptide structure consisting of a phenylacetyl subunit bound to a small peptide chain of proline and glycine.  Although it isn’t technically classified as a “racetam” (due to its lacking of a 2-oxo-pyrrolidine …

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Piracetam Side Effects & Adverse Reactions (List)

Piracetam is a drug that was synthesized in 1964 by Corneliu E. Giurgea et al. at the pharmaceutical company “UCB” headquartered in Belgium.  Chemically, it is identified as 2-oxo-1-pyrrolidine acetamide, shares the same base structure with pyroglutamic acid, and as a result of its pyrrolidone nucleus, is classified as a “racetam” compound.  Following the synthesis …

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