Evidence-Based Longevity

Your Best Years
Aren't Behind You

Evidence-based longevity resources for adults 55+ — written by a doctor who lives what he teaches.

The Complete Longevity Series

Four evidence-based books that work together as a complete longevity system

Book 1

The Longevity Blueprint

What the World's Top Experts Actually Agree On About Living Longer After 55

  • Sleep optimization & circadian science
  • Nutrition, exercise & mind-body practices
  • Social connection & environmental factors
  • Testing, tracking & supplementation

$6.99 Kindle  /  $14.99 Paperback

Buy on Amazon
Book 2

The Longevity Toolkit

An Evidence-Based Guide to Therapeutic Alternatives like Sauna, Cold Plunge, Red Light Therapy and Others

  • Sauna therapy with Grade A evidence
  • Cold plunge, breathwork & meditation
  • Red light, PEMF & hyperbaric oxygen
  • The 90-Day Toolkit Challenge

$9.99 Kindle  /  $18.99 Paperback

Buy on Amazon
Book 3

The Longevity Fast

An Evidence-Based Guide to Fasting for Body, Mind, and Soul

  • Autophagy science & Nobel Prize research
  • Time-restricted eating, 5:2 & OMAD protocols
  • Brain health & gut microbiome benefits
  • Spiritual dimensions & ancient traditions

$9.99 Kindle  /  $19.99 Paperback

Buy on Amazon
Book 4

The Longevity Brain

An Evidence-Based Guide to Protecting Memory, Sharpening Focus, and Staying Mentally Vital After 55

  • Neuroplasticity & cognitive reserve
  • The MIND diet, sleep & exercise for the brain
  • Dementia risk reduction strategies
  • Mental sharpness & focus protocols

$9.99 Kindle  /  $19.99 Paperback

Buy on Amazon

Evidence-Based CBT Workbooks

Five clinician-designed workbooks with practical exercises, structured protocols, and journal prompts

Workbook

Nervous System Reset Workbook

A 30-Day Evidence-Based Program to Calm Anxiety, Heal from Stress, and Regulate Your Body

  • Polyvagal theory & vagal tone exercises
  • Breathwork, cold exposure & somatic practices
  • 30-day structured program
  • Journal prompts & daily trackers
Buy on Amazon
Workbook

Caregiver's Mental Health Workbook

An Evidence-Based CBT Program for Burnout, Compassion Fatigue, and Rebuilding Yourself While Caring for Someone You Love

  • Caregiver burnout & compassion fatigue
  • Boundary setting & guilt management
  • Grief & anticipatory loss frameworks
  • Structured self-care plan
Buy on Amazon
Workbook

Health Anxiety Workbook

A Clinician's CBT Program to Break the Cycle of Body Scanning, Catastrophizing, and Medical Fear

  • Break the body-scanning cycle
  • Cognitive restructuring for medical fear
  • Exposure & response prevention
  • Relapse prevention plan
Buy on Amazon
Workbook

Burnout Recovery Workbook

An Evidence-Based CBT Program for Healthcare Workers Facing Exhaustion, Moral Injury, and Compassion Fatigue

  • Moral injury & exhaustion frameworks
  • Recovery protocols for clinicians
  • Values realignment exercises
  • Return-to-purpose worksheets
Buy on Amazon
Workbook

The Overthinking Cure Workbook

An Evidence-Based CBT Program to Break Free from Rumination, Analysis Paralysis, and Mental Loops

  • Rumination & worry cycle interruption
  • Decision-making frameworks
  • Cognitive defusion techniques
  • Action-over-analysis protocols
Buy on Amazon
About the Author

Written by a Doctor Who Practices What He Teaches

I'm Dr. Scott McDonald — a healthcare professional with over 37 years of clinical experience and a lifelong student of what it takes to thrive in the second half of life. After four decades of watching patients navigate aging, I noticed something the research now confirms: the people who age well aren't lucky — they're intentional.

I created the Longevity Series to bridge the gap between cutting-edge science and the people who need it most. At 62, I'm not just writing about these practices — I'm doing them every single day.

"The goal isn't to live forever. It's to live fully — for as long as possible."

Key Experts Referenced Across the Series

Peter Attia Andrew Huberman David Sinclair Rhonda Patrick Valter Longo Jason Fung Satchin Panda Mark Mattson Dan Buettner
SM

Dr. Scott McDonald, OD 37 years clinical experience
Weaverville, North Carolina

Companion Journals & Trackers on Etsy

Instant-download PDFs designed to pair with the books and workbooks

Planner

90-Day Longevity Planner

A printable daily tracking system built around the science in The Longevity Blueprint

  • Daily habit & sleep tracking
  • Nutrition & fasting windows
  • Weekly reflection prompts
  • Instant PDF download
Get it on Etsy
Tracker

Longevity Toolkit Tracker

A companion tracker for the 90-Day Toolkit Challenge in The Longevity Toolkit

  • Sauna, cold plunge & red light logs
  • Breathwork & meditation tracking
  • PEMF & hyperbaric session notes
  • Weekly summary sheets
Get it on Etsy
Journal

Fasting Journal

Structured pages for reflection, ketone & hunger tracking paired with The Longevity Fast

  • Daily fasting window log
  • Hunger & energy rating scales
  • Ketone & glucose tracking
  • Reflection & gratitude prompts
Get it on Etsy
Tracker

Intermittent Fasting Tracker

A simple daily tracker for 16:8, 18:6, and OMAD protocols

  • Fasting & eating window log
  • Weight & measurement tracker
  • Hydration & sleep check-ins
  • Weekly progress review
Get it on Etsy
Tracker

Inflammation Tracker

Identify food, stress, and sleep triggers that drive chronic inflammation

  • Daily symptom & trigger logging
  • Food sensitivity tracking
  • Stress & sleep correlation
  • Pattern recognition worksheets
Get it on Etsy
Log

Sauna & Cold Plunge Log

Track temperature, duration, and recovery for hot/cold therapy sessions

  • Session-by-session entries
  • Temperature & duration tracking
  • Heart rate & recovery notes
  • Contrast protocol planner
Get it on Etsy
Bundle — Best Value

The Longevity Bundle

All journals & trackers in one complete digital package

  • 90-Day Planner + all trackers
  • Fasting & IF journals included
  • Sauna/cold plunge & inflammation logs
  • One instant download
Get the Bundle on Etsy

The Longevity Living YouTube Channel — Coming Soon

Video breakdowns of the latest longevity research, expert interviews, and practical how-tos — designed for adults 55+ who want more than a soundbite.

No spam. Just a heads-up when we launch.