1 hour 20 minutes | Thursday, 8 February 2024
As humans we have evolved to move, but why are we getting it wrong so often?
David Raichlen is the Professor of Human and Evolutionary Biology at the University of Southern California. His research focuses on the connection between human evolution, physical activity, and health, examining why inactivity leads to so many chronic diseases in the modern world.
In this conversation David and Steven discuss topics, such as how modern exercise levels compare to hunter-gatherers, the dangers of sitting, how air pollution is linked to dementia, and the misunderstanding of just how much exercise it takes to get health benefits.
00:00 Intro
01:59 My Work: How Lifestyle & Exercise Affects the Brain
03:07 You Can Change an Ageing Brain
05:22 What Is a Neuron?
05:36 What Is the Hippocampus
07:28 The Link Between Exercise and Brain
09:06 What Happens to Our Brain When We Don't Exercise
12:54 People Aren't Meeting the Guidelines for Good Health
15:25 What Activities Are Good for Our Brain?
17:35 Orienteering Can Train the Brain
18:47 How the Different Types of Exercise Increase Neuroplasticity
22:39 Impact of Exercising in Greener Spaces Than Urban
24:06 Better Cognition Exercising Before a Task
25:41 The Optimal Time of the Day to Exercise
27:46 The Hadzas: Researching Hunter-Gatherer Tribes & the Findings
28:56 What Is the Optimal Exercising Time?
31:59 Cardiovascular Illnesses in Hadza Tribe
35:07 What's the Issue with Sitting?
40:29 The Power of Daily Small Amounts of Exercise
42:17 How to Improve Memory
46:08 Top Factors That Fuel Cognitive Problems
48:38 Link Between Human Connection & Brain Impact
50:54 Pollution Impact on the Brain
53:13 Racquet Sports for Brain Health
54:41 How Much Activity Do I Have to Do?
55:52 Endocannabinoid Receptors and Exercise Rewards
57:24 Mental Health Issues Linked to Lack of Exercise
01:01:45 Brain Foods
01:03:07 Reaching Optimal Living
01:07:50 What Causes Alzheimer's?
01:12:39 Last Guest Question
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