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Life is short and advice about how to increase longevity They are read by many people. We follow with interest everything that scientists aging experts They tell us that it can be shortened or extend our life expectancy.
One of the most welcome pieces of news in recent years has been that healthy living habits They are much more important than genetics. Our destiny is not marked and we can modify it. Within that lifestyle, dietary habits They are a key piece. Eat less or eat less often and you will live longer. From there, several theories arose about the benefits of intermittent fasting.
And nuevo study does not refute that these medical theories of fasting are valid. But it puts them in perspective in the face of even greater evidence. What matters is not when you eat or stop eating but how much you eat.
Eating less prolongs life
The study that has just been published in the journal Nature has sought what factors They are the ones who really get it diet extends life. Their conclusions are that:
- Habitually eat fewer calories than average It gives you more chances to live longer.
- It is more useful than following a calorie restrictive diet from time to time to keep the weight at bay.
- Those who they ate a lot They go looking for other pleasures that are not a long life.
To reach this result they did a ambitious experiment used laboratory mice. There were almost a thousand mice of very diverse genetic type to be able to cover all the variables.
In this way they would check if genetics had a bearing on the results. The mice were divided into groups. Some had their usual diet reduced so they could eat 20% less. Others ate 40% less. Others were put in fast one or two days and then they were allowed to eat whatever they wanted. Finally, another group had no restriction of food.
What results did they achieve?
The mice that lived the least were those that ate whatever they wanted (some 25months). Those of intermittent fasting They lived an average of 28 months. Those who got used to a 20% shorter diet lived 30months. And those who ate the strict diet 40% fewer exceeded the 34 months.
However, within each group there were many differences. Not everyone who ate less lived longer. The researchers highlight that the key here is not to lose weight with a diet. It is about maintain your abilities eating less regularly.
“Our study really points to the importance of resilience“explains the profesor Gary Churchillresearcher at the Jackson Laboratory, in Maine (United States). The mice that lived longer did not lose weight, but rather adapted to the diet. Those who lost weight and energy by eating less died sooner.
These results are in line with what we observed among the long-lived. They are all thin people who don’t need to eat a lot to live, but they remain agile and with full capabilities.
Genetics are more important
This is where the bad news comes. If some animals were more resistant than others to the reduction in diet, it was because your genetics. Other factors were analyzed, such as glucose and body fat levels. Values that are widely used in people to know the metabolic health and aging.
None of this was important in the mice evaluated. What did have weight was his genetic ability to adapt to diet naturally maintaining your weight and maintain good defenses that protected them from infections.
These findings show that the weight of genetics is important even though they have wanted to sell us the opposite.
“If you want to live a long time, there are factors you can control throughout your life, such as diet, but in reality what you want is a very old grandmother“said Professor Churchill.
What markers indicate longevity
The researchers question that criteria that have until now been widely used to analyze your options for living longer, such as fat percentages in the total of your weight, the blood glucose levels o to body temperature really serve.
After analyzing all this data on the mice whose diet was restricted, it gave them no clue as to which one would live longer. However, your defenses or the level of red blood cells (those that carry oxygen) yes.
“Although calorie restriction is generally good for life expectancy, our data show that losing weight with calorie restriction is actually bad“warns Professor Churchill.
If you already have an adequate weight, “losing more weight with a longevity diet is not a marker that you will live longer”, he adds.
**What specific genetic markers, identified through research, demonstrate the strongest correlation with an individual’s potential lifespan?**
## Interview: Unpacking the Secrets to Longevity
**Introduction:**
Welcome to World Today News. Today, we delve into the fascinating topic of longevity. We have two esteemed guests joining us, Dr. [Guest 1 Name], a renowned geneticist specializing in aging, and Dr. [Guest 2 Name], a leading nutritionist with extensive research in dietary interventions and lifespan.
**Section 1: The Role of Lifestyle vs. Genetics**
* **Host:** The article highlights the ongoing debate between the influence of lifestyle choices and genetics on our lifespan. Dr. [Guest 1 Name], based on your expertise, how significant are our genes in determining longevity compared to our lifestyle habits like diet and exercise?
* **Host:** Dr. [Guest 2 Name], the research indicates that healthy living habits are crucial. But given the recent study suggesting a link between genetics and dietary response, how can individuals personalize their lifestyle choices for optimal aging? Should we focus on genetics testing to tailor our diets?
**Section 2: Caloric Restriction – A Powerful Tool?**
* **Host:** Intermittent fasting and caloric restriction have gained immense popularity as potential pathways to a longer life. However, the study presented suggests that consistent calorie reduction might be more beneficial than intermittent fasting. Dr. [Guest 2 Name], what are your thoughts on these findings, and what advice would you give to individuals considering these dietary approaches?
* **Host:** Dr. [Guest 1 Name], the research also emphasizes the importance of “resilience” in the aging process. Does this suggest that our genetic inheritance plays a crucial role in our ability to adapt to calorie restriction and varying dietary patterns?
**Section 3: Beyond Calories – Markers of Longevity**
* **Host:** The article mentions that traditional markers like body fat percentage and blood glucose levels might not be the most reliable indicators of longevity. Dr. [Guest 1 Name], what other factors or biomarkers should we be focusing on to assess an individual’s potential for a longer lifespan?
* **Host:** Dr. [Guest 2 Name], considering these new insights, how can we refine our understanding of the relationship between diet, genetics, and healthy aging? What are the key takeaway messages for our listeners regarding their own lifestyle choices?
**Conclusion:**
Thank you to our guests for sharing your invaluable insights. As research advances our understanding of the complex interplay between genetics and lifestyle choices, we continue to gain new perspectives on the path to a longer, healthier life. Remember, consult with your doctor or qualified healthcare professional for personalized advice tailored to your individual needs and medical history.
