Side Effects: Salt, Steroids, and Second Brains - Takeaways - MDSpire

Side Effects: Salt, Steroids, and Second Brains

So get this: sodium may track with memory decline (in men), steroids might not be “immunosuppressive” in the ICU, and second pregnancies reshape the brain differently than first. Same theme: biology is less binary than we teach it.

  • By

  • Kerri Miller

  • April 22, 2026

  • 7 min

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  • 1

    Higher sodium intake is linked to increased episodic memory decline in older men, but not in women, over a six-year study period.

  • 2

    The study involved 1,208 cognitively unimpaired Australians, revealing that sodium intake affects memory decline independently of blood pressure.

  • 3

    Second pregnancies show distinct neural changes compared to first pregnancies, with different impacts on brain networks related to cognition.

  • 4

    Corticosteroids, often labeled immunosuppressive, do not increase infection rates in ICU patients and may even reduce secondary infections.

  • 5

    The review suggests that the immunosuppressive effects of corticosteroids in acute illness may be oversimplified and depend on dosage and timing.

Original Source(s)

Side Effects: Salt, Steroids, and Second Brains

  • by Kerri Miller

  • April 22, 2026

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