Learning & education

Does Vitamin B3 Help Hair Growth?
Nov 06, 2025
Does topping up with B3 really help hair grow thicker or faster? Let’s lift the hood and see what the science says about B3, scalp blood flow, and those hardworking follicle engines.
The Relationship Between Stress, Poop Consistency, and Neurotransmitter Shifts
Oct 30, 2025
The link between stress, neurotransmitter shifts, and stool consistency is a powerful example of the gut-brain axis in action. Stress activates CRF, catecholamine, and serotonergic pathways that alter ENS behavior, change transit time, and often produce looser or harder stools depending on the context and individual.
Does Vitamin B3 Increase Testosterone?
Oct 23, 2025
Ever wondered why vitamin B3 shows up in almost every “natural T-booster” on the market? Many wellness products link niacin to higher testosterone. But does science back the idea that niacin can turbocharge testosterone production, or is it just another myth?
The Role of Serotonin in the Gut: From Bowel Movements to Mood
Oct 16, 2025
Although the details of the gut-brain conversation are still unfolding, one message is already loud and clear: serotonin made in the gut plays a starring role in both digestion and mood.
How Gut Microbes Produce Chemicals That Impact Mood and Bowel Health
Oct 09, 2025
This article will explain the major ways that gut microbes produce and influence chemicals that shape mood and bowel function. It will also give concrete examples and note what this communication means for health and wellness.
Why Most Supplement Stacks Don’t Work (and What to Do Instead)
Oct 09, 2025
Most supplement stacks don’t work the way you think they do. Either they cancel each other out, cause overstimulation, or just turn into expensive pee. In this episode of Don’t Look Up, Dr. Scott Sherr explains how to build a smarter supplement stack — one that’s effective, targeted, and backed by science.