Essentials: Using Salt to Optimize Mental & Physical Performance

Essentials: Using Salt to Optimize Mental & Physical Performance

From Huberman Lab by Scicomm Media

March 26, 2026 · 39 min

About this episode

This episode discusses the impact of salt on mental and physical performance and how to determine individual sodium needs.

In this Huberman Lab Essentials episode, I explain how salt (sodium) affects mental and physical performance, as well as cellular health. I describe how the brain monitors sodium levels to regulate thirst and fluid balance, and why salt needs can vary depending on activity level, stress, blood pressure, and diet. I also explain how to determine the right sodium intake for your individual needs and discuss why some people may benefit from increasing salt and other electrolytes. Read the episode show notes at hubermanlab.com. Thank you to our sponsors AG1: https://drinkag1.com/huberman Function: https://functionhealth.com/huberman LMNT: https://drinklmnt.com/huberman Timestamps (00:00:00) Salt (00:00:37) Brain & Monitoring Salt (00:02:33) Thirst, Osmotic Thirst & Salt (00:05:35) Hypovolemic Thirst & Blood Pressure (00:06:59) Sponsor: Function (00:08:39) Fluid Balance, Kidney & Urine Regulation (00:11:53) How Much Salt Do You Need?, Blood Pressure, Dizziness & Postural Syndromes (00:17:29) Replenish Salt for Performance, Tool: Galpin Equation & Exercise (00:19:15) Sponsor: LMNT (00:20:46) Stress & Craving Salt (00:22:29) Electrolytes: Magnesium & Potassium; Low Carbohydrate Diet…

People in this episode

Host: Huberman

Topics covered

  • salt
  • mental performance
  • physical performance
  • cellular health
  • sodium intake
  • electrolytes

Keywords

  • salt
  • sodium
  • mental performance
  • physical performance
  • electrolytes
  • thirst
  • fluid balance

Sponsors

AG1, Function, LMNT

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