Microplastics In Glass Bottles & Lead In Salt? Cardio Before Strength Or Strength Before Cardio? Creatine Causes Hair Loss? & More: Solosode #492

Ben Greenfield

Aug 7, 2025

Episode description

In the episode, you’ll get to explore some surprising, science-backed insights that could upgrade the way you approach health, performance, and longevity. You’ll discover why your favorite glass water bottle might not be as “clean” as you think, thanks to new research showing it can leach up to 50 times more microplastics than plastic bottles. I break down exactly how that happens, what it means for your health, and offer simple, realistic ways to reduce your microplastic exposure without overhauling your entire life.

Whether you're trying to cut through the noise on microplastics, optimize your workouts, protect your hair while using creatine, or explore unconventional brain-boosting hacks, this episode gives you the tools to think critically, act intentionally, and take your health into your own hands.

Full show notes: https://bengreenfieldlife.com/492

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Mindsip insights from this episode:

Debunk creatine myths: no link to hair loss

Contrary to popular belief, a recent study showed that creatine supplementation does not increase DHT levels or cause hair loss in men.

#creatine

#hair-loss

Snort creatine to enhance cognitive performance

A study in rats suggests that intranasal creatine administration can bypass the blood-brain barrier, potentially improving cognitive performance more effectively than oral use.

#cognition

#creatine

Choose yoga to alleviate low back pain

When comparing six different exercise therapies, a study found that yoga was the single most effective intervention for alleviating low back pain.

#back-pain

#yoga

Implement strike, stroll, shiver strategy for effective fat loss

A personal fat loss strategy involves having caffeine (strike), going for a walk (stroll), and taking a cold shower (shiver) in a fasted state in the morning.

#biohacking

#weight-loss

Debunk lead scare: Celtic salt is safer than common foods

The lead levels in Celtic sea salt are naturally occurring and lower than those found in common foods like sweet potatoes and red wine.

#safety

#salt

Reduce microplastics by avoiding glass bottles with painted caps

New research suggests glass bottles can release up to 50 times more microplastics than plastic ones, primarily from the paint on the caps.

#environment

#microplastics

Discover Fatty15 for superior cellular health benefits

A newly discovered essential fatty acid called Fatty15 (C15.0) is claimed to offer over 36 health benefits, outperforming drugs like rapamycin and metformin for cellular health.

#anti-aging

#supplement

Prioritize strength training before cardio for effective fat loss

For optimal body fat reduction, a recent study found it is more effective to perform strength training before doing steady-state cardio in the same session.