Living a long and a healthy life is a cherished goal for many. Dan Buettner, who first discovered the blue zones, where people live the longest lives, recognised that one of the main factors of not just a long life, but a healthy one is the diet. There are documentaries too that have explored this topic. A Netflix documentary called Live to 100: Secrets of the Blue Zones, which revealed the lives of Centenarians, those who live 100 years or more. Studies reveal that a shared lifestyle patterns, and dietary habits is what benefits them.

What Are The Blue Zones?

"Blue Zones" include Okinawa, Japan; Ikaria, Greece; Sardinia, Italy; Nicoya Peninsula (Costa Rica); and Loma Linda, California.

It is true that centenarians can be found worldwide, but those in Blue Zones, share a common lifestyle habit. They prioritize in staying active, fostering close community ties, and maintaining a positive attitude. The diet, is something we all can learn and include in our lifestyle too.

"Blue Zones" are geographic areas with lower rates of chronic diseases and longer life expectancy. This is possible because of their diet, fasting, exercise, along with other factors. This term was first used by author Dan Buettner, who studied the areas of the world where people lived exceptionally long lives. He called them the "Blue zones", because when Buettner and his colleagues were searching for these areas, they drew it with a blue circles around them on the map.

The Centenarian Diet:

Legumes: It includes beans, peas, lentils. These are fiber-rich foods, that helps regulate cholesterol and blood sugar levels. It reduces the risk of chronic diseases such as heart disease and cancer. Their plant-based protein content makes them a nutritious and versatile addition to meals.

Olive Oils: A staple in Mediterranean diets, olive oil is prized for its healthy unsaturated fats, which support cholesterol balance. Rich in antioxidants like vitamin E and plant compounds, olive oil reduces inflammation and lowers the risk of chronic illnesses.

Nuts and Seeds: These are packed with unsaturated fats, vitamins, and minerals. The antioxidant content supports heart health and reduces inflammation. Centenarians' diets often include these nutrient-dense foods as snacks or meal components.

Tea: Its antioxidant-rich compounds boost immune, heart, and brain health. Regular tea consumption is linked to improved metabolic and digestive functions.

Seafood: Centenarians tend to eat less red meat and more seafood, particularly fatty fish rich in omega-3 fatty acids. These nutrients combat inflammation and enhance brain, heart, and immune health. The proximity of many Blue Zones to oceans influences this dietary preference.

Whole Wheat: Whole grains, including sourdough bread, are common in centenarian diets. Rich in fiber, B vitamins, and minerals, whole grains lower the risk of cardiovascular diseases and cancer. Sourdough fermentation enhances digestibility and supports stable blood sugar levels.

Sweet Potatoes: They are loaded with fiber, potassium, and vitamins A and C, which bolster immune and heart health. Regular consumption of sweet potatoes supports metabolic balance.

Turmeric: Its active compound, curcumin, is known for its anti-inflammatory properties. Turmeric promotes brain health and reduces the risk of chronic diseases, making it a valuable addition to meals.

Prediabetes affects more than 600 million people worldwide and is linked not only to an increased risk of type 2 diabetes but also to impaired brain function.

Adding a small quantity of almonds to the daily diet on their own or added to cereal, yogurt, curries, salads, and other dishes may help boost brain health and prevent a decline in cognitive function in adults with prediabetes, experts said.

Almonds contain

• protein
• fiber
• saturated fat and unsaturated fat
• 24 essential nutrients, including magnesium, potassium, and vitamin E.

The findings showed that eating just a few almonds each day may benefit cognitive performance, metabolic health, and markers of inflammation and oxidative stress in middle-aged Asian Indian adults with prediabetes.

“Adults with prediabetes are vulnerable to a decline in cognitive function. Our study indicates that just one simple dietary change – adding a small quantity of almonds to the daily diet – may help support brain health and improve cognitive performance in some populations,” said Dr. Anoop Misra, co-investigator and Chairman, Fortis-CDOC Center of Excellence for Diabetes, Metabolic Diseases, and Endocrinology in New Delhi, part of the study.

He noted that daily almond consumption could help lower the risk of prediabetes progressing to type 2 diabetes, a condition associated with an increased risk of dementia.

How Was The Study Conducted?

Also read: Unsafe Food Causes 1.5 Million Deaths Annually; Children Under 5 Face 3x Higher Risk: WHO

In a 24-week study, 60 Asian Indian adults aged 40–60 with prediabetes were assigned to either a control group or an almond group.

Those in the almond group consumed 32–42 grams of almonds daily as part of a calorie-matched diet.

Researchers assessed cognitive performance, blood sugar levels, cholesterol, weight, BMI, and waist circumference before and after the study.

What Did Researchers Find?

Participants in the almond group experienced improvements in executive function and processing speed, both key measures of cognitive performance.

They also demonstrated better blood sugar control, including lower fasting blood glucose, lower blood glucose levels two hours after eating, and improvements in HbA1c, a marker of long-term blood sugar control.

Additional metabolic benefits included significant reductions in body weight, body fat, BMI, waist circumference, total cholesterol, and LDL cholesterol.

Read More: PM Modi’s Push To Reduce Oil Intake Key To Fighting India’s Obesity And Diabetes Crisis, Say Experts

Participants consuming almonds also showed improvements in markers related to inflammation and oxidative stress.

“The findings showing improvements in cognitive function, blood sugar control, body weight, and cholesterol levels reinforce the role of almonds as a superfood. Their versatility and convenience make them an easy addition to everyday eating habits, while also providing important nutrients that support overall well-being,” said Ritika Samaddar, Regional Head, Department of Clinical Nutrition and Dietetics, Max Healthcare.

“Inflammation and oxidative stress are associated with cognitive decline. Our study found those in the almond group had lower levels of both, along with higher levels of a protective antioxidant (Vitamin E), compared with the control group,” said Dr. Seema Gulati, lead researcher of the study and Head of the Nutrition Research Group at the National Diabetes, Obesity and Cholesterol Foundation in New Delhi.

Chronic inflammation can cause major diseases like type 2 diabetes, cardiovascular disease, and cancer; thus, while thinking about staying healthy for a long time, it is a very important part of it. The disease is also a silent one that silently harms tissues over time and serves as a major reason for lifestyle conditions like Type 2 diabetes, obesity, and heart disease. Thus, reversing it becomes very important,

Recent study by researchers at Ohio State University, published in the journal Molecular Nutrition and Food Research, is a ray of hope for reversing this issue through dietary changes. The study finds that the drinking of specially formulated tomato-soy juice may reduce inflammation.

How Does Tomato-Soy Juice Fight Inflammation?

This beverage has a couple of potent reasons behind its success in the study against inflammation, namely lycopene and soy isoflavones. Notably, lycopene has antioxidant and carotenoid properties that enable it to neutralize free radicals, which cause cellular damage and fuel chronic inflammation. On the other hand, soy isoflavones possess plant-based nutrients called flavonoids, which have unique anti-inflammatory properties that can copy or modulate hormone signaling to calm overactive immune responses.

How Soy Helps Reduce High BP?

Those taking soy foods around 60–80 grams daily can expect a 28–29 per cent reduction in blood pressure. One hundred grams of soy is roughly equivalent to one cup of cooked beans or lentils, or a palm-sized serving of tofu. Higher soy consumption led to a 19 per cent lower risk of hypertension. Soy foods additionally contain compounds called isoflavones, which may further contribute to blood pressure regulation.

The study shows that tomato-soy juice reduced three major pro-inflammatory proteins in the blood, including interleukin-12 (IL-12p70), interleukin-5 (IL-5), and granulocyte-macrophage colony-stimulating factor (GM-CSF). The drink also lowers tumor necrosis factor-alpha (TNF-α), which is linked with chronic inflammatory diseases.

Read Also: Is Soy A Healthy Addition To Your Diet?

Are Soya Chunks Good For Gut Health?

Soy foods may support heart health. It is believed to reduce inflammation in blood vessels and improve their flexibility, lowering the risk of heart disease and stroke. Some studies even link soy consumption to a 15 percent lower risk of death from heart disease.

The ‘high-protein’ tag attached to soy products such as soya nuggets, soya chaap, and even soy milk is misleading. As industrially processed foods often contain 80 to 90 percent refined flour, consumers get empty calories that spike blood sugar, disrupt hormonal balance, and fuel inflammation.

Prime Minister Narendra Modi once again addressed the nation through his monthly radio broadcast, Maan Ki Baat. It was the 134th installment of the broadcast, and the Prime Minister urged the people of India to take extra precautions in summer's scorching heat.

The Prime Minister said, "It is very hot in most parts of the country right now. Strong sun, hot winds, it is very important to take care of yourself in such weather. Keep drinking water. If at all you have to go out in the sun, do so with caution." He added, "Don't forget the guidelines issued by various government departments in this regard."

Then the Prime Minister also addressed traditional food and drinking practices in different parts of the country to stay fit even during the hot summer. He urged the citizens to drink regional traditional drinks to stay hydrated and named popular options like Aam Panna, Sattu sherbet, Kokum sherbet, Sol Kadhi, Panakam, Neer Mor, Sambaram, Bael Pana, and Buttermilk. "Ek Bharat Shreshtha Bharat," he added.

The Prime Minister also mentions mangoes, which are a household summer treat in India. He said, "Every region… its own mango, its own flavor, its own aroma." Then he described these different mangoes and their specialties as well.

Prime Minister Narendra Modi also mentions the journey of the Indian mangoes from domestic production to the global market.

Easy Tips To Stay Fit During a Heatwave

Drink water consistently at regular intervals instead of gulping large quantities at once. Electrolyte-rich fluids like coconut water, lemon water with a pinch of salt, or buttermilk are healthy, affordable options to soothe parched throats.

Add items like curd, rice, cucumber, and bottle gourd to your diet and avoid red meat and fried foods during peak summer days.

Extreme temperatures put additional stress on the cardiovascular system, especially in people with hypertension, diabetes, or heart conditions. Make sure to take all prescribed medications exactly as advised—don’t skip doses even if you experience heat-induced nausea. If you feel dizzy or experience palpitations or severe fatigue, consult your doctor as soon as possible.

Air conditioning is helpful, but overexposure can lead to dry skin, headaches, and respiratory discomfort. Once every two or three hours, step away from your desk for a few minutes. Walk or stand, and sip some water.