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Description
BoundlessBy: Ben Greenfield What if the ability to look, feel, and perform at peak capacity wasnt the stuff of lore but instead was within easy reach? In a perfect world, you would be able to have it all: complete optimization of mind, body, and spirit. In Boundless, the New York Times bestselling author of Beyond Training and health and fitness leader Ben Greenfield offers a first of its kind blueprint for total human optimization. To catapult you down the
By: Ben GreenfieldWhat if the ability to look, feel, and perform at peak capacity wasn’t the stuff of lore but instead was within easy reach? In a perfect world, you would be able to have it all: complete optimization of mind, body, and spirit.
In Boundless, the New York Times bestselling author of Beyond Training and health and fitness leader Ben Greenfield offers a first-of-its-kind blueprint for total human optimization. To catapult you down the path of maximizing cognition, mental clarity, and IQ, you will discover:
• How to rewire your skull’s supercomputer (and nine ways to fix your neurotransmitters)
• The twelve best ways to heal a leaky brain
• Eight proven methods to banish stress and kiss high cortisol goodbye
• Ten foods that break your brain, and how to eat yourself smart
• How to safely utilize nootropics and smart drugs, along with eight of the best brain-boosting supplement stacks and psychedelics
• The top nutrient for brain health that you probably aren’t getting enough of
• Six ways to upgrade your brain using biohacking gear, games, and tools
• How to exercise the cells of your nervous system using technology and modern science
• Easy ways to train your brain for power, speed, and longevity
• The ultimate guide to optimizing your sleep, maximizing mental recovery, and stopping jet lag
To ensure that you look good naked and live a long time, you will learn:
• Sic ways to get quick, powerful muscles (and why bigger muscles aren’t better)
• How to burn fat fast without destroying your body
• The fitness secrets of sic of the fittest old people on the planet
• The best training program for maximizing muscle gain and fat loss at the same time
• One simple tactic for staying lean year-round with minimal effort
• A step-by-step system for figuring out exactly which foods to eat
• Fourteen ways to build an unstoppable immune system
• Little-known tactics, tips, and tricks for recovering from workouts with lightning speed
• The best tools for biohacking your body at home and on the road
• How to eat, train, and live for optimal symmetry and beauty (and how to raise kids with superhuman bodies and brains)
And to help you live a fulfilling and happy life, you will learn:
• Twelve techniques to heal your body using your own internal pharmacy
• What the single most powerful emotion is and how to tap into it every day
• Four of the best ways to heal your body and spirit using sounds and vibrations
• Six ways to enhance your life and longevity with love, friendships, and lasting relationships
• How to biohack the bedroom for better sex and longer orgasms, and the top libido-enhancing herbs, supplements, and strategies
• The perfect morning, afternoon, and evening routines for enhancing sleep, productivity, and overall happiness
• Twenty-eight ways to combine ancestral wisdom and modern science to enhance longevity, including the best foods, herbs, supplements, injections, medical treatments, biohacks, fasting strategies, and much more
• The four hidden variables that can make or break your mind, body, and spirit
• The exercise that will change your life forever (and how to reverse-engineer your perfect day)
Boundless guides you every step of the way to becoming an expert in what makes your brain tick, your body work, and your spirit happy. You can flip open the book to any chapter and discover research-proven, trench-tested techniques to build muscle, burn fat, live longer, have mind-blowing sex, raise robust children, and much, much more!
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4.1 ★★★★★
Based on 7 reviews
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Product Reviews
★★★★★ 5
Peanut Butter Bliss for Paws That Love to Gnaw
Flavor Name: Peanut Butter, Size: 2.19 Pound (Pack of 1)
Purina Busy Bone Peanut Butter Chews are like Netflix for your dog—entertaining, long-lasting, and slightly addictive. Made in USA facilities and crafted for small to medium breed adult dogs, this 10-count pouch delivers tail-wagging joy in every bite.
Why It’s a Pup Pleaser:
Peanut Butter Flavor: Irresistible to dogs and smells good enough to make you question your snack choices.
Long-Lasting Chew Time: Keeps your dog busy while you Zoom, nap, or pretend to fold laundry.
Made in USA Facilities: Quality you can trust, with standards that make tails wag and humans nod approvingly.
Real-Life Perks:
Great for dental distraction—helps reduce boredom and plaque with every chomp.
No rawhide, no worries—just a safe, satisfying chew.
Perfect size for small to medium dogs who think they’re large and in charge.
Final Verdict: Busy Bone is the chew that turns your dog into a focused, peanut-butter-loving zen master. Whether you need a moment of peace or just want to treat your furry friend, this pouch packs the kind of joy that only a good chew can deliver.
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Reviewed in the United States on September 24, 2025
★★★★★ 5
Excellent Treats for Small to Medium Dogs!
Flavor Name: Peanut Butter, Size: 2.19 Pound (Pack of 1)
I’ve purchased the Purina Busy Bone, Long Lasting Small/Medium Breed Adult Dog Chews, Peanut Butter Flavor - 10 ct. Pouch several times over the last few months, and they’ve become a staple in our dog’s treat routine! Our three dogs absolutely love them. The peanut butter flavor seems to be a huge hit, and I appreciate that these treats are made in USA facilities—I feel more confident in the quality and safety.
They’re just the right size for small to medium breeds, and they last long enough to keep our pups occupied for a while. Plus, they don’t have that overpowering smell some chews do, and they don’t leave a mess behind, which is a big plus in my book.
Overall, these are a high-quality, tasty, and reliable treat that keeps our dogs happy and busy. Highly recommend for any dog owner looking for a long-lasting chew that’s both delicious and made with care.
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Reviewed in the United States on May 15, 2025
★★★★★ 5
Mr. Diggy approves two paws up
Flavor Name: Peanut Butter, Size: 5.25 Pound (Pack of 1), Flavor Name: Peanut Butter, Size: 5.25 Pound (Pack of 1)
These just arrived earlier today, and Mr. Diggy just had one a little while ago. Well, it was gone fast. He is 60 pounds and 14 years old and loves his treats so I make sure I have good ones for him because he can’t have that many. What a nice strong bone and you could smell the peanut butter. He was so excited he took it and went to lay down. He only does that with special things. I feed my dog and cats, Purina pro and I can see since they’ve been eating it that it agrees with them and makes their coats, soft and shiny besides.
That’s why I bought these because they are made by Purina and there’s no rawhide
I bought the larger bone and I’m glad I did. It’s a good size for him. They call him a medium sized dog, but they never tried to pick him up lol I am going to check now and see what other flavors they have although peanut butter is his favorite
Try them I think your dog will like them. Mr. Diggy gives two paws up for these.
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Reviewed in the United States on March 6, 2026
★★★★★ 4
smells good, teething puppy loves gnawing on it as I hold it.
Flavor Name: Peanut Butter, Size: 2.19 Pound (Pack of 1)
I normally don't do treats like this, but my mom had purchased a small pack for my dogs. I was reticent to try it, but with a new puppy I was looking for something for little miss alligator teeth to chomp on that isn't my fingers. It worked out so well (I held it while she gnawed) that I purchased a big pack. While not meant for puppies, it has been working well for her to have something to grind her teeth on. Currently 10 weeks old, 20 lbs (a yellow lab) with super razor sharp teeth that is all about chomping on everything in her path. These slow her down for several minutes. She is blissed out as she works on it. Have to say, these arent super long lasting even with a tiny-ish puppy. But at least the price is good.
We have had the original (pretty much no odor) and these peanut butter ones which even smell good to me! I may consider these again. Be mindful of calories! 343 calories a piece. Be mindful of their serving suggestion based on size of dog. This isnt meant to be a meal, and not meant for daily consumption. More of the rare treat style.
Ingredients
Rice, vegetable glycerin, wheat flour, water, brewers dried yeast, chicken by-product meal, hydrogenated corn syrup, sugar, corn germ meal, beef tallow preserved with mixed-tocopherols, pork, natural and artificial peanut butter flavor, partially hydrogenated vegetable oil, wheat gluten, phosphoric acid, salt, sorbic acid (a preservative), gelatin, calcium propionate (a preservative), BHA (a preservative), BHT (a preservative), calcium carbonate, citric acid.
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Reviewed in the United States on November 17, 2023
★★★★★ 5
Dogs love these
Flavor Name: Peanut Butter, Size: 5.25 Pound (Pack of 1)
My dogs absolutely love these and it kept them busy
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Reviewed in the United States on May 26, 2026
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