This episode explains how we sense chemicals through smell, taste, and pheromones. How things smell and taste and chemicals in the tears, breath, and on the skin of others have a profound effect on how we feel, what we do, and our hormones. I explain the 3 types of responses to smell, the 5 types of tastes, the possible existence of sixth taste sense, and how the act of sniffing can make us learn and focus better. I explain how smell and taste reflect brain health and can assess and even promote brain regeneration. I discuss how eating specific categories of foods makes us crave more of those foods, including how to make sour things taste sweet and develop a heightened sense of smell and taste. Sponsors:
ROKA - https://www.roka.com - code: huberman
InsideTracker
Athletic Greens
Timestamps:
00:00:00 Intro
00:06:02 Sensing Chemicals: Smell, Taste and Chemicals That People Make To Control Each Other
00:09:10 Vision Protocols Recap (Brief): Near-Far Viewing and 2 hours/day outside, and Correction
00:12:20 Color Vision: Excellent Resource: What is Color? (The Book)
00:13:54 How We Sense Chemicals: Enter Our Nose, Mouth, Eyes, Skin
00:17:28 The Chemicals From Other People’s Tears Lower Testosterone and Libido
00:21:16 SMELL: Sniffing, A Piece of Your Brain In Your Nose, 3 Responses To Smells
00:24:40 Smells and Memory: Why They Are So Powerfully Associated
00:26:40 Pheromone Effects: Spontaneous Miscarriage, Males and Timing Female Puberty
00:28:56 Sniffing Creates Alertness and If Done Properly Can Help You Focus and Learn Better
00:34:00 Protocol 1: Sniffing (Nothing) 10-15X Enhances Your Ability to Smell and Taste
00:35:50 Smelling Salts, Ammonia and Adrenaline
00:38:25 How You Can Become A Human Scent Hound, Detecting Cancer, and Tasting Better
00:43:45 Smell As A Readout Of Brain Health and Longevity; Regaining Lost Sense Of Smell
00:48:30 Dopamine, Sense Of Smell, New Neurons and New Relationships
00:50:20 Why Brain Injury Causes Loss Of Smell; Using Smell To Gauge and Speed Recovery
00:53:33 Using Smell To Immediately Becoming Physically Stronger
00:54:40 Smelling In Our Dreams, Active Sniffing In Sleep, Sniffing As a Sign Of Consciousness
00:57:35 Mint Scents Create Alertness By Activating Broad Wake-Up Pathways Of Your Nervous
00:59:48 Protocol 2 Pleasant Or Putrid: The Microwave Popcorn Test, Cilantro, Asparagus, Musk
01:03:00 Skunks, Costello, All Quiet On The Western Front
01:04:32 TASTE: Sweet, Salty, Bitter, Umami, Sour; Your Tongue, Gustatory Nerve, NST, Cortex
01:08:45 Energy, Electrolytes, Poisons, Gagging, Amino Acid and Fatty Acid Sensing, Fermentation
01:13:48 Our 6th Sense of Taste: FAT Sensing
01:15:05 Gut-Brain: Your Mouth As An Extension Of Your Gut; Burned Mouth and Regeneration
01:19:30 Protocol 3: Learn To Be A Super-Taster By Top-Down Behavioral Plasticity
01:22:20 The Umami-Sweet Distinction: Tigers Versus Pandas. Aggression Versus Passivity
01:25:05 Eating More Plants Versus Eating More Meat, Cravings and Desire
01:27:15 Food That Makes You Feel Good Or Bad: Taste Receptors On Our Testes Or Ovaries
01:30:05 Biological Basis For The Sensuality of Umami and Sweet Foods
01:32:28 Appetitive and Aversive Sensing: Touching Certain Surfaces, Tasting Certain Foods
01:33:35 Amino Acids Are Key To Life, The Maillard Reaction, Smell-Taste Merge, Food Texture
01:39:00 How Processed Food Make You Crave More Processed Foods
01:39:44 Protocol 4: Invert Your Sense of Sweet and Sour: Miracle Fruit; Swapping Bitter and Sweet
01:43:03 Pheromones, Desire To Continue Mating: Coolidge Effect Occurs In Males and Females
01:46:40 Do Women Influence Each Others Menstrual Cycles?
01:49:19 Recognizing the Smell Of Your Romantic Partner
01:50:30 Differences In Odor Detection Ability, Effects Of Hormones
01:53:00 We Rub The Chemicals Of Others On Our Eyes and Skin, Bunting Behavior
01:56:40 Summary