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Rishi Dhingra
2 min readApr 9, 2020

Sleep is your most powerful immune defense.

Against popular myth, immunity isn’t something you can bolster overnight by simply consuming certain foods and supplements. It’s a gradual process occurring over time. Building a stronger immune defense takes time and consistency.

One of the best tools you have right now to support your immune system is proper sleep. Sleep is underrated and forgotten. It single handedly gives you the biggest immune boost you could ask for.

Sleep more.

1. Both the quality and quantity of sleep you get each night can have a profound impact on your immune health. When you sleep, your brain shrinks. This allows the CSF (cerebrospinal fluid) to both nourish and detox your brain, while letting it empty its waste. Sleep deprivation and naturalistic disturbance of sleep impairs adaptive immunity, increases susceptibility to infectious disease.

Your brain is carrying around toxins it doesn’t need, and without sleep, brain function can be further impaired. Deep (SWS) sleep permits the CSF to flush out all the toxins, degenerated cells and infections that have been building up.

Sleep disturbances cause a reduction in antiviral immune responses due to decreases in HGH during SWS and increases of sympathetic activation.

At least 7 hours a night is recommended.

2. Sleep boosts our T-cell response capability. T-cells are our first line of defense against pathogens. So better sleep is better immunity. >7 hours has shown up to 3x more immune function than those who have slept <7 hours.

3. You need to stress less. And this happens most effectively when you’re asleep. Stress hormones activate fight or flight and their chronic elevation lower immune function. Also train, but don’t over train.

Eat reasonably healthy. Minimize alcohol consumption.

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Rishi Dhingra

holistic nutritionist : biohacker : tennis player : ironman triathlete : anti-aging & longevity geek : crossfit — IG: @rishirajdhingra URL: rishidhingra.com