Sleep Series – Week 3
August 1, 2025

Sleep and Your Immune System

Quality sleep strengthens your body’s defenses. During deep sleep, your immune system releases cytokines—proteins that target inflammation and infection. Poor sleep reduces production of these cytokines, making it harder to fight illness. A study published in Sleep Journal found that people who slept fewer than 6 hours were four times more likely to catch a cold than those getting 7+ hours.

Sleep and Hormonal Balance

Your sleep-wake cycle helps regulate hormones such as cortisol (stress), insulin (blood sugar), and melatonin (your natural sleep hormone). When you lose sleep, cortisol stays elevated, insulin sensitivity decreases, and melatonin production drops—creating a ripple effect that impacts mood, metabolism, and reproductive health. Source: NIH.

Sleep and Mental Clarity

Sleep plays a critical role in memory, learning, and decision-making. During sleep, your brain clears waste products and strengthens neural connections. Inadequate sleep has been linked to brain fog, slower reaction times, and reduced problem-solving. A Harvard study found that people deprived of sleep showed significant decreases in cognitive performance and emotional regulation.

ProThrivers® Wellness Sleep: All-in-One Support

If you’re looking for a natural, science-backed supplement that supports deeper sleep, we recommend ProThrivers® Wellness Sleep. It contains three well-researched ingredients: Magnesium, L-Theanine, and Melatonin—all in one easy-to-take tablet.

Regularly $26.99 – Save 20% off your first order

💚 Create your Fullscript account to browse supplements:
Join our online store here

📧 Then email Dr. Ryan with subject line #Sleep to claim your 20% discount!

Next Week: In our Sleep Series we’ll look at tips to create your personal wind-down routine for long-term sleep success.