Understanding the Neuroscience of Mental Fatigue - Why You Lack Motivation (it  is not 'Lazy')

Understanding the Neuroscience of Mental Fatigue - Why You Lack Motivation (it is not 'Lazy')

Author: Alexis Fernandez-Preiksa - Neuroscientist and Mindset Coach July 20, 2026 Duration: 31:44

In this ep I talk about the complex world of cognitive fatigue, going into the neuroscience behind why we feel drained, demotivated, and disconnected from life. We're not just talking about being tired, but a state of being that's often misunderstood. 

This ep also covers the intricate mechanisms behind our brain's response to stress, inflammation, and disrupted circadian rhythms, the difference between being tired and being fatigued, and how fatigue is a biological response that's not just about sleepiness or physical exhaustion.

I also cover the role of dopamine, inflammation, and circadian rhythms in contributing to fatigue, as well as the importance of sleep quality, physical activity, and mental stimulation in maintaining our energy levels. Also the impact of phone addiction, social media, and multitasking on our mental fatigue, highlighting the need for a more mindful approach to our digital lives.

If you're feeling drained, demotivated, or disconnected from life, this episode is a must-listen. I offer practical advice and insights to help you understand the neuroscience behind cognitive fatigue and provides tools for making positive changes to improve your mental well-being. 

See omnystudio.com/listener for privacy information.


Hosted by cognitive neuroscientist Alexis Fernandez-Preiksa, Do You F*cking Mind? delivers practical, science-backed mindset tools for anyone looking to cut through internal clutter and build a more resilient, self-directed life. This isn't abstract theory; it's applied neuroscience and psychology for your real-world problems. Each Monday, Alexis releases an in-depth episode exploring a single theme, dissecting topics like the mechanics of habit formation, navigating complex friendships, processing heartbreak, or cultivating a genuinely carefree approach to daily pressures. The focus is on actionable strategies, explaining not just what to do but how the brain works to make those changes stick. Then, every Friday, the format shifts to "Head Noise," a dedicated Q&A session where Alexis directly tackles listener-submitted questions, offering personalized insights and clarifications. The tone is direct, unapologetically candid, and free of fluff, mirroring the podcast's title. It’s a blend of rigorous science and street-smart wisdom, all aimed at empowering you to audit your own thoughts and behaviors. For those ready to move past passive listening and into active self-improvement, this podcast serves as a weekly mental toolkit. Listeners are encouraged to engage by sending their own questions for the Friday episodes.
Author: Language: en-us Episodes: 50

Do You F*cking Mind?
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