The 6 rules you need for a long, healthy life and how to cut your risk of dementia, heart disease and cancer | Dr. Ezekiel Emanuel

What really helps you live a long, healthy life? Can healthy ageing be as simple as a few everyday habits?

In this episode, Dr. Ezekiel Emanuel, world-leading oncologist, bioethicist and World Health Organization adviser, shares six rules from his book Eat Your Ice Cream (amzn.to/4wu8faa) that may help lower your risk of dementia, heart disease, cancer and early death.

Ezekiel explores the science of healthy ageing, longevity and disease prevention, and explains why many wellness trends distract us from what matters most.

By the end of the episode, you’ll have six practical habits that have the biggest impact on living well for longer. From building stronger relationships and staying mentally active to improving your diet, exercise and sleep, Ezekiel offers a simple framework designed to support health over decades, not weeks.

If you want to live a longer, healthier life, are you focusing on the habits that matter most?

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Timecodes

00:00 Why more exercise may not help you live longer
03:49 The book that made a leading doctor furious
08:11 Why wellness culture thrives when life feels out of control
10:52 What the wellness industry gets wrong about longevity
13:05 Are peptides and supplements dangerous?
16:28 How much alcohol is safe to drink?
18:52 How ultra-processed food affects your brain and body
23:49 Is vaping safer than smoking?
25:35 Which vitamins and supplements are actually worth taking?
28:09 Rule one: The risks that are never worth taking
30:12 Is climbing Everest more dangerous than you think?
31:27 The number one rule for a longer, healthier life
33:35 How loneliness increases your risk of early death
35:51 What loneliness does to your immune system and heart
37:03 How many close friends do you need for better health?
39:20 Is working from home harming your mental health?
40:08 How to rebuild your social life when you feel isolated
40:52 Four vaccines linked to a lower risk of dementia
44:21 Is retirement bad for your brain?
45:32 Four simple food rules for better gut health
47:56 The three types of exercise you need as you age
50:17 How many hours of sleep do you really need?
52:24 Is sleep less important than social connection?
54:02 Why sleeping pills may not improve your sleep
56:13 The one habit that combines all six longevity rules

📚Books by our ZOE Scientists

The Food For Life Cookbook (amzn.to/4amfIMX)

Every Body Should Know This by Dr Federica Amati (amzn.to/4blJsLg)

The Appetite Reset by Dr Federica Amati (amzn.to/4aBakbR)

Food For Life by Prof. Tim Spector (amzn.to/4amZinu)

Ferment by Prof. Tim Spector (amzn.to/4hU1Df5)

Good Mood Food (preorder) by Prof. Tim Spector (amzn.to/4l9oXat)

Free resources from ZOE

The Smart Snacking Guide: How to feed your gut, fuel your day, and snack without guilt (zoe.com/snacking-2026?utm_medium=zoe_podcast&a…)

The Hormone Harmony Guide: Tuning Your Body’s Internal Orchestra (zoe.com/hertility?utm_medium=zoe_podcast&u…)

Eating for Better Brain Health: Your brain-gut blueprint (zoe.com/brainhealth?utm_medium=zoe_podcast&…)

How to eat in 2026 - Discover ZOE’s 8 nutrition principles for long-term health (zoe.com/2026?utm_medium=zoe_podcast&utm_so…)

Live Healthier: Top 10 Tips From ZOE Science & Nutrition (zoe.com/freeguide?utm_medium=podcast&utm_s…)

Gut Guide - For a Healthier Microbiome in Weeks (zoe.com/gutguide?utm_medium=podcast&utm_so…)

Better Breakfast Guide (zoe.com/breakfastguide?utm_medium=podcast&…)

Mentioned in today's episode

Eat Your Ice Cream: Six Simple Rules for a Long and Healthy Life by Dr. Ezekiel Emanuel (amzn.to/4wu8faa)

Multivitamins and cognitive health (pmc.ncbi.nlm.nih.gov/articles/PMC12889344), Annals of Medicine and Surgery (2026)

The (un-)Social Brain (pmc.ncbi.nlm.nih.gov/articles/PMC12746854), Physiological Research (2025)

Association between social activity frequency and overall survival (jech.bmj.com/content/77/5/277), BMJ (2023)

The Health and Retirement Study (nia.nih.gov/research/resource/health-and-retir…)

Harvard Study of Adult Development (adultdevelopmentstudy.org)

Mistakenly seeking solitude (pubmed.ncbi.nlm.nih.gov/25019381), Journal of Experimental Psychology (2014)

Home alone: Remote work, isolation, and mental health (science.org/doi/10.1126/science.aec7671), Science (2026)

Have feedback or a topic you'd like us to cover? Let us knowhere (gf6hx47iu5g.typeform.com/topicsuggestion).

Episode transcripts are available here (zoe.com/learn/category/podcasts).