Vitamin C supplements? Largely useless. But this one habit? Proven to strengthen immunity by 40%...
The primary driver of immune function is sleep. Natural killer cell production is 40% higher in 8-hour sleepers versus 6-hour sleepers. Vitamin C only helps if you are deficient — most people get adequate amounts from food.
Cold water immersion produces a measurable immune response but is unsustainable for most. Sleep is the reproducible universal immune lever.
Vitamin C supplements? Largely useless unless you are deficient.
But this habit is proven to strengthen immunity by 40%: sleep.
Natural killer cell production — your body's first-line antiviral defense — is 40% higher in 8-hour sleepers versus 6-hour sleepers.
Sleep is the universal reproducible immune lever.
Use it tonight..
Sleep is your immunity upgrade. No supplement required. Prioritize 7-9 hours tonight.
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