Longevity Edition

The biology of birthdays... because every year counts!🎉

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Inside Health Weekly

Few moments are as awkward as standing still while everyone sings “Happy Birthday” …

From forcing a smile and wondering where to look, to having no clue what to do with your hands, it’s a universal moment of pure chaos.

But behind the cake and candles, there is something deeper: a quiet checkpoint measuring how well our bodies are keeping up with time.

This week with Inside Health, let’s unwrap the science of longevity and explore how to make sure that every year you’re not just getting hotter, but healthier, too.

Happy Birthday Party GIF by The Office

Cell-ebrating Your Energy:

Ever wonder how someone may be 60 years old, but feel fresh at the age of 20? 

This feeling all lies in the power of our mitochondria– yes, the infamous powerhouse of the cell (how many times have you heard that now?)

But real talk. It’s time you give your mitochondria way more credit for being the reason you can study for hours on end, pursue your hobbies, stay lively, and overall just feel good

As we age, so do our mitochondria. In fact, they are what distinguish the difference between chronological age and biological age.

Chronological age→ Literally, how long you’ve been on Earth

Biological age→ How old your cells are. Based on genetic & environmental factors, as well as diet & lifestyle habits

- Tyler Raikar; Inside Health Research Director

The Power Behind Your Candles:

Our mitochondrial function makes a HUGE impact on our biological age. In fact, their dysfunction is the root cause of many hallmarks of aging, including:

  • Chronic inflammation

  • Poor immunity

  • Cancer

  • Diabetes

  • Neurodegenerative disease

If you feel constantly tired, have persistent bowel problems, muscle issues, or brain fog, there’s a chance your mitochondria might be dysfunctioning!

Knowing your biological age is a great way to assess the health of your mitochondria. The quality & vitality of your mitochondria take the cake over how many candles you have on your birthday. It’s time you treat your mitochondria as though it's their birthday every day.

Season 2 Nbc GIF by The Office

Here’s a fun resource that provides a good understanding of your biological age! What's my Biological Age?

Must-Read! Health Headlines:

ON THE NEWS:

  • Sepsis and AI

    • New AI tools are being used to generate life-saving alerts for sepsis, a leading cause of hospital deaths.

ON THE MARKET:

Pfizer at Glance (October 2025)

  • đź’¸Money Moves! The stock is up 4.5% this month, showing some investor love, despite the current rough patch.

  • 📊Valuation Glow Up: Trading at a major 6% discount to its estimated true value, Pfizer’s price-to-earnings ratio dropped from 17.5x to 12.6x, meaning it’s looking A LOT for affordable.

  • 👨‍💼Insider Buzz… CEO Albert Bourla and team made several insider award transactions totaling $220K+ this month… always a sign worth watching.

What We’ve Been up to: Inside Us

  1. Know your Lemons CEO chat

    Dropping this week! Breast cancer screening, breast density, early signs, and your top questions answered.

  2. Free Hormone AI Webinar

    Join CEO Erika Petal + OB/GYN experts and Inside Health contributing authors to ask questions and boost your health literacy on hormones!

  3. HBA Feature

    Cordelia spoke at “Rewriting the Rules with Digital Health Tools”—Inside Health in the spotlight!

  4. HLTH Coverage

    The biggest health innovation conference wrapped up last week! And IH covered the conference virtually! End-of-week: showcasing the winning startups… exciting!

Hey Inside Health Fam! đź’›

This week has been full of highlights: from chatting with Know Your Lemons on breast cancer to exciting HLTH conference coverage, and public speaking for the first time representing Inside Health at an international conference with the HBA…it’s been incredible.

I’m incredibly grateful for all of you in our community… your support and engagement for health literacy keep me and the team inspired every single day. It’s also a reminder of why focusing on a healthy healthspan matters, celebrating life and making choices that help us age well, so that we can enjoy many more “birthday parties” together.

- Cordelia de la Fuente; Inside Health Founder

What We’re Loving:

The daily health habit you’ll actually stick with…

This time of year, it’s so easy for your daily routine to be thrown off.

When it starts getting dark before you’re home from work and the Halloween candy is taunting you, it’s important to find something that’s easy to do daily for your body.

With just one quick scoop every morning, you’ll get over 75 ingredients that help support your immune health, gut health, energy and help to close nutrient gaps in your diet.

Click here and you’ll get a free AG1 welcome kit with your first subscription including a:

✔️ FREE Flavor Sample Pack
✔️ FREE Bottle Vitamin D3+K2 Drops
✔️ FREE Canister + Shaker

It’s one of the easiest things you can do for your body every day.

*These statements have not been evaluated by the Food and Drug Administration.

By the Numbers…

That’s everything for now! Thanks for hanging out with Inside Health this week. Understanding how you function starts with education, and you’re already doing the work just by being here.

Until Next Time! —The Inside Health Team.