This episode I explain how we sense chemicals by way of smell, taste and pheromones. How things smell and taste and bodily chemicals of others have a profound effect on how we feel, what we do and our hormones. I explain the 3 types of resp...

This episode I describe how we see, meaning how our eyes focus, convert light information into electricity the rest of the brain can understand and how our brain creates the incredible thing we experience as “sight”. I also describe how w...

This episode I discuss endurance: our ability to perform effort over extended amounts of time. I describe the four kinds of endurance: muscular endurance, long duration (single-set) efforts, and the two kinds of high intensity interval trai...

In this episode I describe how our brain and nervous system control muscle tissue and how to leverage that for muscle maintenance, growth (hypertrophy) and recovery. I explain muscle metabolism and muscle fiber recruitment. I detail protoco...

This episode I describe the science of fat loss, including how fat is mobilized and oxidized (burned) and how to increase fat burning by leveraging the nervous system. Most people don't realize it, but our neurons connect to our fat and rel...

This episode I discuss the science and practice of learning physical skills: what it involves at a biological level, and what to focus on during skill learning at each stage to maximize learning speed and depth. I also describe what to do i...

This episode I explain the science of heating and cooling the body, a process called thermoregulation-- and how to apply that knowledge to significantly improve physical performance. I describe the three areas of our body that can remove he...

This episode I describe the biology of two essential hormones we all make: cortisol and adrenaline (also called epinephrine). Cortisol and adrenaline powerfully regulate our levels of energy, focus and immune system function. I describe var...

This episode I discuss metabolism and how our thyroid hormone and growth hormone control our metabolism. I also clarify that metabolism isn't just about burning energy, it’s about converting energy from different sources into fuels for buil...

This episode I discuss how hormones from our gut, liver, pancreas and brain control our appetite-- and the specific tools we can use to adjust those hormones in order to achieve specific goals. I explain the brain areas that control our des...

This episode I discuss the hormones testosterone and estrogen and how they impact the brain, body, and behavior at ages after puberty. I also discuss how various behaviors such as exercise (resistance and endurance training) and sex, or obs...

In this episode, I discuss how hormones such as testosterone and estrogen and their derivatives impact the early development of the brain and body and their maturation. I review published data on environmental factors shown to powerfully al...

In this episode, I discuss the biology of emotions and moods in the context of relationships. I focus on the science of how early infant-caregiver attachment, combined with adolescence and puberty shapes our adult patterns of attachment. I...

This episode explains the science of motivation and drive. I describe how dopamine, a chemical we all make in our brain, underlies our desire for and pursuit of our goals, as well as our capacity to move and experience pleasure. I describe...

This episode explains the brain-body connections that allow the specific foods we eat to control our moods and motivation. I discuss the vagus nerve and its role in dopamine and serotonin release in the brain. I review Omega-3 fatty acids a...