TJ Power: How Dopamine, Oxytocin, Serotonin & Endorphins Drive Happiness and Longevity | TUH #209

About this video

Neuroscientist TJ Power joins Brecka in London to explain his DOSE framework — dopamine, oxytocin, serotonin and endorphins — and how each shapes happiness and longevity. Power argues modern life over-supplies cheap dopamine through scrolling and under-supplies oxytocin through real connection, discusses forest bathing research he cites on serotonin, and contends social media feels connecting while, in his view, often leaving people more disconnected. Brecka connects dopamine deficiency to addiction patterns from his earlier mortality work.

Key takeaways

• Power argues excess dopamine-seeking crowds out oxytocin, which he links to belonging and purpose
• Power claims time in nature raises serotonin and is prescribed in some countries as a mental health intervention
• Power states scrolling produces a wanting loop that, he argues, rarely feels satisfying afterward
• Brecka claims absence of dopamine drives people toward addictive, dopamine-seeking behavior

Episode details: published October 14, 2025 · 17.2K views · 1:06:27 long. Summary written by Self Growth Videos from the episode itself. Gary Brecka is a commercial health figure, not a physician. The claims described are Brecka’s or his guests’, presented for education — not medical advice and not endorsed by Self Growth Videos. Consult a qualified professional before changing your own health practices.

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