Why Women Feel So Tired in Their 30s & 40s with Jen Scheinman, Timeline Nutrition

Why Women Feel So Tired in Their 30s & 40s with Jen Scheinman, Timeline Nutrition

May 21, 2026 · 52 min · Episode 188

About this episode

The episode discusses the underlying causes of fatigue in women during their 30s and 40s, focusing on mitochondrial health and nutrition.

What if the reason you feel more tired, foggy, or just not like yourself anymore… isn’t just hormones or “getting older” — but something happening deeper in your body? In this episode, I sit down with Jen Scheinman, a registered dietitian with over 25 years of experience in nutrition and healthy aging and Director of Science Communications at Timeline Nutrition. Jen is one of the leading educators on Urolithin A — a postbiotic compound found in Mitopure — and its role in mitochondrial health, cellular renewal, and longevity. Beyond Timeline, she also runs her own practice, Next Jen Health, where she helps women optimize vitality through the menopause transition and beyond. We explore a part of our health that most of us have never really been taught to think about—our mitochondria, the energy centers inside our cells — and why so many women start to feel a shift in their 30s and 40s, when the things that used to work suddenly don’t. Jen breaks down the science in a way that actually makes sense, connecting fatigue, brain fog, and changes in your body to what’s happening at the cellular level. We talk about why diet and exercise can stop working the way they used to, how your gut…

People in this episode

Host: Kelly

Guest: Jen Scheinman

Topics covered

Keywords

Mentioned in this episode

Organizations: Timeline Nutrition, Next Jen Health

Products: Mitopure

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