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| Science & Technology | |
| Surprising study reveals obesity and alcohol may help survival after deadly disease diagnosis | |
| 2025-09-02 | |
Named for the biomedical scientist Raphael E Cuomo, it describes the counterintuitive finding where a factor, such as alcohol consumption, high cholesterol, or obesity, which increases someone’s risk of getting a deadly disease, may actually be associated with better survival after someone is diagnosed. Obesity, moderate alcohol consumption and a diet that drives high cholesterol are well-established risk factors for developing chronic diseases like cancer and heart disease. Yet, patients who have already been diagnosed with a disease with these behaviors often demonstrate an unexpected survival advantage over thinner people who do not drink with the same diagnosis. The risk-survival paradox developed by Cuomo's team at the University of California San Diego School of Medicine argues that what is beneficial for a healthy person, including losing weight and steering clear of fatty foods, might shorten a sick person's life. For healthy people, the goal is to remain healthy by managing weight, keeping cholesterol in check, and drinking in moderation or not at all. But Cuomo's observation adds that, once a person is sick, the body's needs might change and the goal shifts to fighting the disease and surviving. In patients fighting cancer or heart disease, body fat and cholesterol can serve as crucial energy reserves, helping the body withstand the immense metabolic stress of illness. Cholesterol is also a fundamental building block needed to repair cells damaged by disease or harsh treatments. And while alcohol is a known carcinogen, moderate intake has been linked to better heart disease survival. It also appears to improve cholesterol levels, reduce blood clot formation and increase insulin sensitivity, which may benefit an already-diagnosed patient. Cuomo described the paradox in The Journal for Nutrition and offered two possible explanations. First, it may be a false signal. A severe, advanced disease like cancer or heart failure causes the body to waste away, leading to weight loss and plummeting cholesterol levels. Therefore, low weight and low cholesterol levels might not be the cause of poor survival. Instead, they are a symptom of the aggressive disease process that is already underway. Doctors are not recommending that patients gain weight after a diagnosis, however. The observation is that patients who are already overweight or obese at the time of their diagnosis often show better survival rates compared to normal-weight or underweight patients with the same disease. The second possible explanation is that there may be real biological mechanisms at play. Body fat serves as a store of energy that the body can tap into to meet the demands of fighting their disease. These energy reserves also help patients tolerate the side effects of treatments like chemotherapy and radiation and reduce the risk of becoming dangerously malnourished and weak, a condition called cachexia. Similarly, high cholesterol is a clogging agent that increases a healthy person’s risk of developing heart disease. But in a patient who is already battling cancer or another chronic illness, fatty molecules in the blood, including cholesterol and lipids, are sources of energy for the body to tap into and use in its fight against advancing disease. Cholesterol is also a vital component of cell membranes. To heal damaged tissues resulting from disease, radiation, or chemotherapy, the body requires a sufficient amount of cholesterol to rebuild healthy cells. It also helps control the production and release of hormones like estrogen and cortisol, which regulate the body's response to illness, maintain muscle mass, and manage inflammation. Alcohol is classified by the World Health Organization as a class 1 carcinogen, a substance that has been proven to cause cancer in humans based on sufficient evidence. But Cuomo's Paradox reveals that for patients already diagnosed with cardiovascular disease, moderate alcohol consumption has been consistently linked to better survival in observational studies. Alcohol can increase levels of high-density lipoprotein (HDL), which helps remove ‘bad’ cholesterol from the arteries, slowing plaque buildup. Moderate intake can also make the body more sensitive to insulin, reducing the risk of type 2 diabetes, a significant risk factor for heart disease. Alcohol can also make blood platelets less ‘sticky,’ which reduces the formation of blood clots that can cause heart attacks and strokes. According to the paradox, the stress of withdrawal or the loss of a perceived benefit, such as antioxidants in red wine, could theoretically do more harm than good in heart disease patients. This does not mean that being overweight, drinking or having high cholesterol is beneficial for someone without a disease. It means that rigorously enforcing prevention guidelines in sick, weakened patients might be ineffective and could even undermine their strength and well-being. Each patient's care must be tailored to their individual needs. Nutritional guidance should also not be abandoned. Instead, it should be tailored to the specific stage of a patient's health journey, Cuomo said, rather than based on standard prevention advice, such as reducing cholesterol or losing weight. Cuomo said: ‘Healthy should be defined relative to a person’s stage in life and goals. Cuomo’s Paradox reframes health as prevention versus survival. My research has uncovered pre-diagnosis versus post-diagnosis as a core variable in nutrition. ‘It became clear to me that prevention advice and survivorship advice must be separated.’ | |
| Posted by:Skidmark |
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| Posted by: ed in texas 2025-09-02 12:40 |
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| Posted by: ed in texas 2025-09-02 10:26 |