How does not eating enough affect sleep, recovery, and your nervous system? | Dr. Abbie Smith-Ryan @GabbyReece
How does not eating enough affect sleep, recovery, and your nervous system? | Dr. Abbie Smith-Ryan  @GabbyReece
Uploaded August 2026 | Updated September 2026, 1 week ago
Under fueling doesn't just stall your training, it raises cortisol, disrupts your sleep, and weakens your immune system while you're trying to get stronger. In this clip Dr. Abbie Smith-Ryan and Gabby break down how carbohydrate and fat intake directly shape your nervous system, and why high-quality fats and a recovery gap after hard sessions matter more than another cup of caffeine. If you train hard and still feel fried, this is the fueling shift worth making.

The Gabby Reece Show

This is where I have real conversations with the people I find most worth listening to: scientists, athletes, coaches, parents, and thinkers who are doing the hard work of building a life that holds up over time. No hacks. No quick fixes. Just honest, practical conversations about performance, longevity, relationships, and what it actually takes to show up well at every age.



If you are here, you probably already know that health is not a destination. It is how you live. I am glad you are along for it.

Connect with Gabby Reece:

Instagram: instagram.com/gabbyreece
TikTok: tiktok.com/@gabbyreeceofficial
Website: gabriellereece.com
How does not eating enough affect sleep, recovery, and your nervous system? | Dr. Abbie Smith-RyanGabby Reece: Youre Doing Active Recovery Wrong (And Its Destroying Your Joints)How to actually use AI for research? The Benefits and It’s LimitationThe Muscle That Clenches During Fight or Flight, Never Resets | Liz TenutoI Lost Seven Pounds and Nothing Had Changed. This Was Why. | Dr VassWhat It Actually Takes to Win in High-Stakes, High-Pressure Environments | Gabby ReeceThe Old Coaching Model Is Broken, Here Is What Replaced It | John CookHow to Calm Your Nervous System Before Bed (With KAATSU) | Jesse Sallas & Steve MunatonesHigh-intensity workouts can spike cortisol if youre already stressed | Liz TenutoWhy Longevity Looked Different Before Gyms Existed | Gabby ReeceWhy high performers never dealt with wellness barriers | Dominic LukeThe three things that actually drive cortisol, not just stress | Abbie Smith-Ryan
Gabby Reece |

How does not eating enough affect sleep, recovery, and your nervous system? | Dr. Abbie Smith-Ryan

SHARE TO X SHARE TO REDDIT SHARE TO FACEBOOK WALLPAPER