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:
• Anti blue light glasses (lizearlewellbeing.com/product/ocushield/anti-b…)

Get in touch with a question for Liz:
• Email: podcast@lizearlewellbeing.com
• WhatsApp: 07518 471 846

More from Liz:
• Preorder Liz’s new book – How to Age (amazon.co.uk/How-Age-Supercharge-Health-Better…)
• A Better Second Half (amzn.to/4gdLAGG)
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