Dr. Jonathan Pierce, PhD: Clinical Psychologist & Neuroscience Specialist

Does glycine help you sleep better? What studies show about core temperature and next day fatigue

Dec 09, 2025 · 11 min read

Yes. Human research suggests that taking 3 grams of glycine about 1 hour before bed can improve subjective sleep quality and next day fatigue, potentially because glycine lowers core body temperature during sleep. If you are a man who runs “hot” at night, wakes up unrefreshed, or feels flat the next day, glycine is a ...

Why do i get so hot when i sleep: The science of night sweats and overheating

Dr. Jonathan Pierce, PhD: Clinical Psychologist & Neuroscience Specialist

Dec 05, 2025 · 15 min read

You get hot in your sleep when the normal nighttime drop in core body temperature of about 0.5 to 1.0 °C (1 to 2 °F) is disrupted, prompting the hypothalamus to open skin blood vessels and activate sweating to dump heat. The good news is that the trigger is often changeable, such as room setup, alcohol, stress, ...

The science of food noise and how to turn down the volume

Dr. Jonathan Pierce, PhD: Clinical Psychologist & Neuroscience Specialist

Dec 03, 2025 · 17 min read

If your brain never shuts up about food, it is not a character flaw. It is a brain-body signal problem that you can dial down with the right mix of habits, hormones and, when needed, medication. “When a man tells me he wakes up thinking about food and goes to bed planning his next snack, ...

Andrew Huberman sleep cocktail: What it is, what works, and what to skip

Dr. Jonathan Pierce, PhD: Clinical Psychologist & Neuroscience Specialist

Nov 26, 2025 · 15 min read

The Huberman sleep cocktail is a sleep supplement stack that typically includes magnesium, L-theanine, and apigenin, sometimes with inositol. Evidence is strongest for magnesium and L-theanine, while apigenin and low-dose inositol have limited direct sleep data. Here is what each ingredient does, what research supports, and how to use it safely. “The Huberman sleep cocktail ...

Low libido: When the brain is the issue

Dr. Jonathan Pierce, PhD: Clinical Psychologist & Neuroscience Specialist

Oct 19, 2025 · 16 min read

Low libido in men is often a brain-and-life issue. Changes in reward and stress signaling (including dopamine- and norepinephrine-driven “wanting”) can lower sexual desire for weeks or months even when testosterone is normal. About 15–25% of men report reduced desire at some point. Here’s how mood, stress, medications, hormones, and daily habits interact, and what ...