4 - Why Your Energy May Feel Different After 40 — And What Researchers Are Exploring

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“I Thought Feeling Tired All The Time Was Just Part Of Getting Older”

At 58, Linda wondered why her energy had changed — then she discovered a molecule scientists call NAD+.

ECBy Eleanor Clarke, Health Correspondent
Published 08:00, 23 July 2026
Linda, a British woman in her late 50s, at home by a window
Linda, 58, noticed her energy change after 50. Posed by model.

At 58, Linda wondered why her energy had changed so much — until she came across a molecule scientists call NAD+.

“I didn’t feel like myself anymore”

For years, Linda enjoyed an active lifestyle — time with family, walks outdoors, always busy. But after turning 50, she began noticing small changes.

“I would wake up, but I didn’t feel refreshed. Simple things required more effort.”

Like many adults, she assumed it was simply part of getting older.

Searching for a better routine

Instead of accepting that feeling less energetic was her only option, Linda started researching ways to support her overall wellness — and discovered that scientists were studying a molecule found naturally in our cells: NAD+. Because it plays a role in cellular energy processes, it became an interesting addition to her daily routine.

Linda walking outdoors with her partner and dog
Linda has returned to the active lifestyle she loves.
LB
Linda B., 58
Manchester
★★★★★
I wasn’t looking for a miracle — I just wanted to feel my best every day.I added the liposomal NAD+ alongside movement, better nutrition and consistent sleep. Within a few weeks my mornings felt lighter and my afternoons stopped disappearing.

Why more adults are exploring NAD+

Thousands of adults are now learning about cellular health — and how supporting the body’s natural processes may become part of a healthy-ageing routine.

For Adults Who Feel The Difference

See why NAD+ is becoming a popular wellness choice

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References & Further Reading
  1. Covarrubias AJ, Perrone R, Grozio A, Verdin E. “NAD+ metabolism and its roles in cellular processes during ageing.” Nature Reviews Molecular Cell Biology, 2021. nature.com
  2. Rajman L, Chwalek K, Sinclair DA. “Therapeutic Potential of NAD-Boosting Molecules: The In Vivo Evidence.” Cell Metabolism, 2018. pubmed.ncbi.nlm.nih.gov
  3. Verdin E. “NAD+ in aging, metabolism, and neurodegeneration.” Science, 2015. pubmed.ncbi.nlm.nih.gov
  4. Yoshino J, Baur JA, Imai SI. “NAD+ Intermediates: The Biology and Therapeutic Potential of NMN and NR.” Cell Metabolism, 2018. pubmed.ncbi.nlm.nih.gov
Advertisement feature. This is sponsored content produced on behalf of MYSIA for general informational and educational purposes only. It reflects emerging scientific research into NAD+ and cellular health and does not constitute medical advice, diagnosis or treatment. Statements have not been evaluated by the MHRA or the FDA. This product is a food supplement and is not intended to diagnose, treat, cure or prevent any disease or medical condition. A food supplement should not be used as a substitute for a varied, balanced diet and a healthy lifestyle. Any references cited above relate to NAD+ as a molecule in general scientific literature and do not represent claims about this specific product or guarantee any particular outcome. Individual results may vary. Always consult your GP or a qualified healthcare professional before starting any supplement, particularly if you are pregnant, breastfeeding, under 18, taking medication or managing a health condition. By continuing you acknowledge this is a paid advertisement. © 2026 MYSIA. All rights reserved.