Podcast Summary

Podcast: The Human Upgrade: Biohacking for Longevity & Performance
Host: Dave Asprey
Episode: How To Sculpt a Perfect Jawline WITHOUT Surgery : 1378
Date: December 11, 2025
Guest: Brandon (Founder of Jawzrsize)

Overview

In this episode, Dave Asprey explores the connection between jaw strength, oral health, cognitive performance, and physical aesthetics. The guest, Brandon (creator of Jawzrsize), shares his personal journey from traumatic jaw injuries to inventing and testing a jaw exercise device aimed at improving jawline definition, oral health, and neurological function—without surgery. Together, they discuss the deep-rooted benefits of jaw training, clinical research, and simple actionable biohacks for listeners of all ages.

Key Discussion Points & Insights

1. The Jaw’s Central Role in Health, Strength & Cognition

• Neuromuscular Strength: The jaw isn’t just about looks; it's intimately connected to the nervous system and affects everything from posture to hand-eye coordination.
  • "Your jaw strength, your facial structure and muscles all affect your airways." (Brandon, 14:11)
• Posture & Systemic Impact: Improper jaw alignment can lead to postural issues, scoliosis, and even pelvic misalignment.
  • "Your whole body, your posture, scoliosis, where your pelvis is, it's all controlled by your jaw in a very subtle way." (Dave Asprey, 05:03)
• Impact on Cognition: Blood flow stimulated by jaw exercise may support cognitive functions and even provide benefits for elderly or bedridden individuals.

2. Personal Backstory & Motivation for Invention

• Brandon recounts his struggle after multiple jaw injuries, including being wired shut for four months, losing muscle mass, and cognitive difficulties.
• As a former martial artist, he previously chewed nylon to strengthen jaw muscles, which inspired the device.
  • "I lost mobility in my bite... my primal urge had just been taken completely from me." (Brandon, 05:26)

3. Modern Diet vs. Primal Chewing

• Diet's Role: Modern processed foods don’t require much chewing, leading to atrophy in jaw muscles and shrinking bone structure.
  • "We cook, cut, blend and process in our, in modern society… The softer the diet gets... the smaller the jaw gets from lack of pressure blood flow." (Brandon, 09:27)
• Hunter-gatherers chewed for 8+ hours a day, while modern people average less than 30 minutes.

4. Clinical Studies & Efficacy

• Jawzrsize ran a small clinical trial:
  • 90% of participants reported relief from bruxism (jaw clenching or grinding) and facial muscle tightness. (11:44)
  • Up to a 400% increase in jaw strength after 30 days of light daily use. (21:50)
  • Facial lifting and reduction in wrinkles were objectively measured.
    • "We saw it was almost a 400 increase in jaw strength from just the average basic routine... in 30 days." (Brandon, 22:08)
    • "A 33% reduction in wrinkles..." (Dave Asprey, 22:18)

5. Breathing, Sleep Apnea & Facial Structure

• Training the jaw can improve airway function and sleep quality:
  • "My lady says, oh my gosh, your sleep apnea is gone." (Brandon, 13:10/14:00)
  • Weak lower jaw can contribute to sleep apnea by falling back and obstructing the airway—strengthening it keeps the airway open.

6. TMJ Disorder & Oral Health

• Regular jaw exercise can help align the TMJ and potentially relieve dysfunction.
• "Just from exercising… nine out of ten people found immediate relief from their bruxism, clenching, or grinding." (Brandon, 11:44)

7. Saliva Flow, Oral Microbiome & Digestion

• Enhanced chewing and saliva flow are crucial for maintaining oral health and initiating digestion.
  • "Saliva is like nature's mouthwash. It's almost like a natural antibiotic." (Brandon, 36:11)
• Strong jaw muscles help with swallowing and may reduce risk of issues like aspiration pneumonia.

8. Children, Development, and Aging

• Jaw training benefits children in jaw development and can help prevent dental crowding and airway shrinkage.
  • "All of her teeth grew in with the perfect space between them." (Brandon, 26:53)
• Elderly or less active people can use jaw exercise to maintain bone, cognitive function, and overall health.

9. Performance, Posture, and Biohacking

• Enhanced jaw strength can positively affect:
  • Athletic performance (e.g., posture, proprioception in sports)
  • Cognitive sharpness and focus
  • Appetite regulation ("calorie-free snack" effect)
• "Strength starts in the jaw." (Brandon, 36:56)

Notable Quotes and Memorable Moments

• On Neurological Power:

  • “What you don’t want to do is be like a big wall of muscle with no neurological strength backing it up. But what you’re pointing out with Jawzrsize is that you’re getting neuromuscular strength because the jaw is so tied into the nervous system.” (Dave Asprey, 00:00 & 49:12)

• On Sleep Apnea:

  • "The main cause of sleep apnea, one of the main causes is a weak lower jaw because it falls back at night." (Brandon, 14:01)

• On Facial Transformation:

  • "It's so crazy how fast it works... within one workout... you have to take a picture to show day one to day seven, because you will look so different." (Brandon, 22:28)

• On Saliva and Oral Health:

  • "Saliva is like nature's mouthwash... if you just keep your head back a little bit and swallow, I guess is the best way to put it." (Brandon, 36:33)

• On Affordable Biohacking:

  • "It’s not expensive and it works. One of the things that people are always saying is biohacking is expensive. This is not an expensive device, but it has big effects throughout the body." (Dave Asprey, 32:16)

Timestamps for Important Segments

• [03:21] Brandon’s jaw injury, recovery, and motivation for inventing Jawzrsize
• [05:03] The jaw’s influence over posture and body alignment
• [09:27] Modern diets' negative impact on jaw development vs. hunter-gatherer chewing habits
• [11:44] Clinical trial: Jawzrsize and relief from TMJ, bruxism
• [14:00] Linking jaw strength to resolution of sleep apnea
• [21:50] Clinical study results: facial lifting, jaw strength increase, wrinkle reduction
• [22:28] User anecdotes on daily facial changes and transformation
• [23:35] Jawzrsize app: track reps, facial progress, and community leaderboard
• [24:33] Discussion of tongue strength, tongue tie, mouth breathing
• [26:53] Children's jaw development and impact on adult oral health
• [29:00] Head, jaw, and neck alignment’s systemic effects (posture, cognition)
• [30:36] Appetite regulation and oral fixation
• [32:16] Product quality, patent issues, and the dangers of cheap knockoffs
• [39:36] Jaw exercise benefits for kids (attention, posture)
• [44:21] Training resistance levels and approaches for different goals
• [46:22] Measuring heart rate increase from jaw exercise; burning calories
• [46:36] User satisfaction scores: 8-9/10 felt more attractive
• [47:29] Using Jawzrsize during weightlifting for neuromuscular enhancement
• [49:12] Shaolin monks, muscle power, and the importance of neuromuscular strength

Flow & Tone

• Dave’s style: Curious, data-driven, approachable, tinged with humor and self-experimentation.
• Brandon: Relatable, passionate inventor with personal scars (literally and figuratively) driving innovation.
• Overall: A conversational deep dive blending scientific studies, real-life anecdotes, and tangible tips for listeners who want a better jawline—but also want to improve health from the inside out.

Key Takeaways for Listeners

• Jaw training is a foundational, overlooked biohack that improves facial aesthetics, oral health, sleep, cognition, and sports performance.
• Simple devices, when designed and used properly, can produce astonishing results at low cost and effort.
• The jaw is more than a cosmetic concern; it’s linked to systemic wellness and should be part of any longevity and performance optimization strategy.
• Progress can be seen within a week. Sustainable, lifelong benefits are possible for all ages.
• Quality matters—avoid cheap knockoffs and focus on properly designed, safe devices.

Episode Value in a Nutshell

If you want to look better, breathe better, sleep better, and even move better, start with your jaw. Five minutes a day can transform more than your face—jaw training is a true human upgrade.

For more, visit Jawzrsize.com and use code DAVE15 for a listener discount.