Thomas Seyfried has spent 30+ years studying cancer.
His message? Cancer is preventable.
Here are his 7 prevention rules:
1. Prioritize Sleep
Sleep is when your body goes into repair mode — especially your mitochondria, the energy centers of your cells.
The more high-quality sleep you get, the better your body can heal, recover, and protect against metabolic damage and even cancer.
2. Regular Exercise
Dr. Seyfried says regular exercise is crucial for cancer prevention.
It boosts mitochondria, lowers inflammation, and supports autophagy.
Easy options:
• Walk
• Swim
• Lift weights
Just move daily — any activity helps.
3. Reduce Stress
Chronic stress harms your mitochondria and fuels inflammation — two major cancer triggers.
To lower stress:
• Try meditation or breathwork
• Prioritize rest
• Consider natural supplements (like L-theanine)
Here’s a quick video where my partner and I break it
4. Fasting.
Seyfried is a big advocate for both intermittent fasting & longer-term fasting.
Fasting reduces blood glucose & enhances ketone production...
Which cancer cells cannot efficiently use.
This helps inhibit their growth & promotes autophagy.
5. Reduce Inflammation
Chronic inflammation is a key driver of cancer.
Dr. Seyfried recommends an anti-inflammatory lifestyle, including:
• Cutting out processed foods and sugar
• Eating anti-inflammatory foods like turmeric, fatty fish, and green tea
• Managing stress through
6. Ketogenic Diet
Dr. Seyfried promotes a ketogenic diet to fight cancer by starving cancer cells of glucose.
This diet is:
• High-fat
• Moderate-protein
• Low-carb
It helps your body burn fat and ketones instead of sugar — which cancer cells depend on.
7. Maintain Stable Blood Sugar
High glucose and insulin levels can fuel cancer growth.
Dr. Seyfried recommends avoiding:
• Sugar
• Refined carbs
• Processed foods
Keeping blood sugar stable reduces inflammation and lowers cancer risk.
That's a wrap!
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