Brain fog

Explore the causes and solutions for brain fog, including hormonal imbalances, low testosterone, poor sleep, and nutritional deficiencies. Learn how to restore mental clarity, sharpen focus, and optimize cognitive performance.

Start here

The essentials for brain fog — then explore the latest posts below.

Brain fog in men: Best vitamins for brain fog and memory, plus supplements that actually help

Brain fog in men: Best vitamins for brain fog and memory, plus supplements that actually help

Dr. Jonathan Pierce, PhD avatar
Dr. Jonathan Pierce, PhD: Clinical Psychologist & Neuroscience Specialist
Jan 20, 2026 · 13 min read

The best vitamins for brain fog and memory are usually the nutrients you are deficient in, most often B vitamins, vitamin D, omega 3 fats, magnesium, and antioxidant nutrients. The smart play is to treat brain fog like a clue, get the right labs, then use targeted brain fog supplements instead of guessing. “In men, ...

Is a midlife crisis in men real? What midlife crisis men can do next

Is a midlife crisis in men real? What midlife crisis men can do next

Dr. Jonathan Pierce, PhD avatar
Dr. Jonathan Pierce, PhD: Clinical Psychologist & Neuroscience Specialist
Dec 31, 2025 · 10 min read

A midlife crisis in men is not an official medical diagnosis, but the stress, mood shifts, and health changes many men feel in their 40s and 50s can be very real and very disruptive. The good news is that the “crisis” phase is often a signal to reassess sleep, hormones, purpose, and relationships, then rebuild ...

Seasonal affective disorder hormones: How to tell SAD from low testosterone in men

Seasonal affective disorder hormones: How to tell SAD from low testosterone in men

Dr. Susan Carter, MD avatar
Dr. Susan Carter, MD: Endocrinologist & Longevity Expert
Dec 29, 2025 · 13 min read

SAD usually follows a repeatable fall-to-winter pattern and improves in spring, while low testosterone is more likely when symptoms are persistent, come with libido or erection changes, and are confirmed on repeat morning blood tests. If your symptoms do not cleanly follow the calendar, or they come with sexual or sleep changes, it is time ...

How much deep sleep should you get? A men’s guide to stage 3 sleep and recovery

How much deep sleep should you get? A men’s guide to stage 3 sleep and recovery

Dr. Jonathan Pierce, PhD avatar
Dr. Jonathan Pierce, PhD: Clinical Psychologist & Neuroscience Specialist
Dec 21, 2025 · 10 min read

Most adult men spend about 10 to 25 percent of their total sleep time in deep sleep, which is roughly 45 to 120 minutes in an eight hour night. If you feel tired, foggy, or low drive despite “enough” hours, the missing piece is often sleep quality, including how much deep sleep you need and ...

The science of supplements: Which vitamins actually fight male fatigue?

The science of supplements: Which vitamins actually fight male fatigue?

Dr. Susan Carter, MD avatar
Dr. Susan Carter, MD: Endocrinologist & Longevity Expert
Dec 18, 2025 · 12 min read

In men with low or marginal levels, repleting key energy cofactors can reduce fatigue by supporting mitochondrial ATP production and stabilizing testosterone-related energy pathways. These include B vitamins (especially B12, folate, and B6), vitamin D, and zinc. Here’s how to spot the signals, confirm them with the right labs, and target what’s actually limiting your ...

Special OfferLab panels included: $300/year free for all members