Is a 'light deficiency' quietly ageing you faster? – with Professor Glen Jeffery

Is a 'light deficiency' quietly ageing you faster? – with Professor Glen Jeffery

One of the most powerful tools for healthy ageing might be something you've barely thought about: light. Most of us spend the majority of our time under LED lighting that's stripped of the very wavelengths our bodies need to function well – and the impact on our metabolism, energy and long-term health is only just being understood.


Professor Glen Jeffery, neuroscientist at UCL's Institute of Ophthalmology, joins Liz to explain why a light deficiency could be quietly accelerating ageing, what it means for your mitochondria, and the simple changes – starting with your light bulbs – that could make a real difference to how you feel and age.


In this episode:

  • Why infrared light is the most overlooked wavelength for human health
  • How LED lighting creates a "light deficiency" – and why Glen calls it modern-day scurvy
  • The profound effect light has on your mitochondria and energy production
  • Why morning light matters
  • What the research really says about red light face masks and infrared saunas
  • How changing your light environment could help regulate blood sugar and metabolism
  • The simple practical changes to make at home – and why Glen's first recommendation is to get a dog


Links mentioned in the episode:


Get in touch with a question for Liz:


More from Liz:


Some links may be affiliate links, which help support the show at no extra cost to you. Read our Affiliate Policy for more information.

Hosted on Acast. See acast.com/privacy for more information.

Jaksot(587)

HRT explained: patches, tablets or gel – and which works best

HRT explained: patches, tablets or gel – and which works best

From navigating HRT confusion to gut health strategies and the truth about trendy wellness swaps, Liz answers your questions. In this episode:Mouth taping – can it stop snoring? And does it cause fine...

12 Tammi 31min

Food, fasting, and your ageing brain – with Dr Mindy Pelz

Food, fasting, and your ageing brain – with Dr Mindy Pelz

Your brain changes as you age, but Dr Mindy Pelz says that's not a bad thing. She explains how fasting might be one of the most powerful tools for your ageing brain, which two supplements could make a...

9 Tammi 58min

Protein, fibre and the biohacks women need in midlife – with Rhian Stephenson

Protein, fibre and the biohacks women need in midlife – with Rhian Stephenson

Nutritionist and ARTAH founder Rhian Stephenson joins Liz to explain why biohacking doesn't need to be extreme – and reveal the simple, powerful fundamentals that actually transform how we feel in mid...

7 Tammi 38min

How to gently reset health habits in January

How to gently reset health habits in January

New year, new questions! From gentle New Year resets to supplement timing, Liz tackles your most pressing health questions for the year ahead.In this episode:How to gently reset health habits in Janua...

5 Tammi 33min

GLP-1s, fibre maxing and light therapy: Liz's take on the trends

GLP-1s, fibre maxing and light therapy: Liz's take on the trends

Welcome to the newly revamped Age Better with Liz Earle. To kick off 2026, Liz is playing Love It or Leave It – giving her honest verdict on the wellness trends you'll be hearing everywhere this year....

2 Tammi 30min

What should I eat for breakfast when I'm short on time? – with Liz Earle

What should I eat for breakfast when I'm short on time? – with Liz Earle

From mineral supplements that boost energy to protein-rich breakfast swaps that stabilise blood sugar, this week's Q&A is packed with simple, evidence-based hacks for living well. Liz also discusses s...

29 Joulu 202531min

Cholesterol, SPF and fighting inflammation: Liz's 2025 highlights

Cholesterol, SPF and fighting inflammation: Liz's 2025 highlights

Liz reflects on the conversations that have stayed with her throughout 2025 – and shares her own thoughts on the topics that hit a nerve with listeners. She revisits why we've been getting SPF advice ...

26 Joulu 20251h

Is it safe to stack supplements? – with Liz Earle

Is it safe to stack supplements? – with Liz Earle

Creatine, collagen, vitamins, greens powders and magnesium – can you really mix them all together, or are you doing more harm than good? Liz tackles your most pressing wellbeing concerns, from supplem...

22 Joulu 202541min

Suosittua kategoriassa Koulutus

rss-murhan-anatomia
voi-hyvin-meditaatiot-2
psykopodiaa-podcast
rss-narsisti
adhd-podi
rss-liian-kuuma-peruna
aamukahvilla
rss-rahamania
rss-eron-alkemiaa
kesken
rss-duodecim-lehti
rss-koira-haudattuna
rahapuhetta
rss-tietoinen-yhteys-podcast-2
rss-niinku-asia-on
rss-uskonto-on-tylsaa
rss-onks-ok
rss-turun-yliopisto
rss-vapaudu-voimaasi
rss-finnish-daily-dialogues