HEART SURGEON JEREMY LONDON EXPLAINS WHAT’S REALLY BAD FOR YOUR HEART AND HEALTH

Many people think only extreme behaviors harm their health, but subtle, everyday choices can have a surprisingly big impact. Dr. Jeremy London, a US-based board-certified cardiovascular surgeon, emphasizes that both lifestyle and environmental exposures shape our long-term cardiovascular and overall health. From processed foods to social habits, he highlights what we should be mindful of, based on science, not hype.

1. Processed Meats Are Riskier Than You Think

Dr. London ranks processed meats like hot dogs and packaged deli meats as a 5 out of 10 on his personal risk scale. “These foods contain nitrates and nitrites, which increase the risk of colon cancer and type 2 diabetes,” he says. The risk is dose-dependent, meaning moderation matters. He emphasizes that occasional consumption isn’t catastrophic, but regular intake can gradually contribute to chronic disease.

2. Chronic Marijuana Use Can Affect Heart Health

While often perceived as natural and harmless, Dr. London gives regular marijuana use an 8 out of ten on the risk scale. “Recent studies link chronic use with higher chances of cardiovascular issues,” he explains. Many users assume that because it’s plant-based, it must be safe, but Dr. London stresses that this is not the case. He encourages people to consider both frequency and long-term exposure when evaluating risks.

3. Alcohol Is a Universal Cellular Toxin

Of all the risks Dr. London covers, he ranks alcohol the highest: 10 out of 10. “Alcohol is toxic to every cell in your body,” he says. Current research supports his view that even moderate consumption carries measurable risks for liver, cardiovascular, and neurological health. He points out that no amount of alcohol is entirely safe, so mindful or reduced intake is the healthiest approach.

4. Plastic Cutting Boards Can Introduce Hidden Risks

Dr. London gives the use of plastic cutting boards a 5 out of 10, citing exposure to microplastics. Over a year, regular use can lead to the ingestion of up to 50 grams of microplastics, the equivalent of roughly 10 credit cards. Emerging studies suggest these particles may influence endocrine function, fertility, and cardiovascular health. Dr. London recommends switching to safer alternatives, such as wooden cutting boards, to minimize these exposures without disrupting daily routines.

5. Loneliness Is a Serious Health Concern

“One of the underrated risks for long-term health is chronic loneliness,” Dr. London says, rating it an 8 out of 10. Research shows that prolonged social isolation can be as harmful as smoking or obesity, increasing the risk of heart disease, stress-related conditions, and even early mortality. He emphasizes the importance of staying connected, calling a friend, scheduling regular social time, or maintaining community involvement, to safeguard both mental and physical health.

Dr. Jeremy London’s perspective reinforces that health isn’t just about major medical interventions; it’s also about everyday behaviors. Processed foods, alcohol, marijuana use, environmental exposures, and social connections all play measurable roles in long-term wellness. While the numbers he assigns are his personal assessment, they align with broader scientific evidence, offering a simple framework for prioritizing which habits to focus on first.

By paying attention to these often-overlooked risk factors, individuals can take practical steps toward reducing health risks in their daily lives. Dr. London emphasizes that awareness and small, consistent changes can yield significant benefits over time.