Longevity is about more than adding years to life; it's about adding life to your years. With an average life expectancy in the U.S. now standing at 77.5 years, medical and living conditions have so dramatically altered what we think we know about aging. But though genetics do have a part to play, they only account for 25% of lifespan variation. Lifestyle choices are where the real game changers are.

This article explores science-backed habits that transcend survival into helping you thrive. It discusses nutrition, mental health, and more to unravel the secrets of a longer, healthier, and fulfilling life.

Balance of Genetics and Lifestyle

Longevity simply put means living a long life. Life expectancy has dramatically improved over the years, from an average of 47 years in 1900 to over 77 years today. However, there is a catch- it is not only about living long but also living those years well.

According to research, only one-fourth of our lifetime is genetically determined, whereas the remaining part is created by our environment, diet, exercise, and lifestyle. This fact brings home a strong message- most of our lives are under our control, and so is our ability to have longer and healthier lives.

8 Habits of Highly Long-Lived People

A study that recently was released during a presentation at Nutrition 2023, an annual research conference in Boston, told of eight powerful habits leading to an immense improvement of life longevity. Using more than 700,000 data records on US veterans aged between 40 to 99 years old in its study, researchers reveal that embracing those habits around age 40 adds roughly 23 and 24 years of life among women and men, respectively. Such habits are as follows:

1. Physically activity .

2. Smoke less .

3. Maintaining an appropriate stress level.

4. Maintaining nutrition

5. Limit drinking.

6. Proper sleep hygine.

7. Having a positive social relationship with other people

8. Not using opioid drugs to solve their problems.

Among these, physical inactivity, smoking, and opioid use were the most harmful and increased mortality risk by as much as 45%. Stress, poor diet, excessive alcohol consumption, and lack of sleep followed closely, contributing to a 20%–30% increase in mortality risk.

What is Nutrition' Role in Longevity

What you eat directly influences your body's cells, impacting not only your lifespan but also your healthspan—the years you spend in good health. A diet rich in fruits, vegetables, whole grains, lean proteins, and healthy fats supports immune function, repairs cellular damage, and reduces inflammation.

On the other hand, foods that contain higher sugar and unhealthy fats would compromise the body's body defenses and increase the vulnerability to chronic diseases like diabetes, cardiovascular problems, and obesity.

The Mediterranean diet, emphasizing fresh produce, olive oil, fish, and nuts, has been consistently associated with longer lifespans and risks of chronic illness.

Role of Exercise

Exercise is one of the most effective ways to enhance longevity. Physical activity strengthens the heart, lungs, and muscles, improves balance, and maintains a healthy weight. These benefits collectively reduce the risk of life-threatening conditions such as heart disease, stroke, and diabetes.

Besides the physical benefits of exercise, it also works to improve mental health. Doing yoga, swimming, or even brisk walking boosts mood, reduces stress levels, and helps in enhancing sleep quality, all which contribute to a longer life.

Scientific evidence has shown that even if one engages in 30 minutes of daily movement, it can prolong life span and significantly improve overall wellness.

Stress Management and Social Connections

Stress is part of life; however, chronic stress becomes a silent killer. Chronic stress causes an elevation in cortisol, which triggers inflammation, suppressed immune response, and risk for chronic diseases such as hypertension and diabetes.

The transformation for fighting stress comes through such techniques as mindfulness meditation, deep breathing, and exercise. Equally important, though, are positive social relationships. Consistent evidence from studies indicates that strong social ties have a relation to better mental and physical health outcomes. Through family, friends, or the community, meaningful connections mitigate against stress and loneliness for a longer life.

Sleep

Sleep is the body's healing time. Poor sleep hygiene is known to disrupt hormones, weaken immunity, and compromise cognitive function, accelerating the aging process. Therefore, it is essential for the quality of rest achieved through consistent sleep schedules and the creation of a pre-bedtime routine that leads to a calming effect with little screen time before getting to bed. Experts maintain that adults need 7-9 hours of uninterrupted sleep per night to support optimal health and longevity.

Alcohol and Opioid Use

While moderate alcohol consumption—such as an occasional glass of red wine—may have health benefits, excessive drinking can cause liver disease, addiction, and premature death. Opioid misuse is still a major public health crisis with far-reaching implications for individual health and societal well-being.

The bottom line? Moderation is the key, and seeking professional help for substance use disorders can be life-saving.

Why Striving for a Quality Life Matters

Adding years to your life is one thing, but longevity means making sure those years are lively, meaningful, and full of purpose. The habits backed by science listed above form a roadmap to achieve that balance.

From a nutrient-rich diet and being active to managing stress and nurturing relationships, small, consistent changes can yield profound results. Take charge of your health today-not just to live longer, but to live better.

Because every choice you make shapes the legacy of your life.

Eight Modifiable Lifestyle Factors Associated With Increased Life Expectancy Among 719,147 U.S. Veterans. Nutrition. 2023

Vaccines are among the most powerful tools in modern medicine, preventing millions of deaths each year. Yet getting those vaccines safely from laboratories to people who need them is far more complicated than many realise. Most vaccines must be kept within a strict temperature range between 2°C and 8°C from the moment they are produced until they are administered.

This temperature controlled system, known as the cold chain, depends on refrigerators, insulated transport boxes and a steady supply of electricity at every step of the journey. Any disruption can damage the vaccine and make it ineffective. Now, scientists are testing a new technology that could remove this challenge altogether.

A vaccine designed to remain stable even at room temperature has shown encouraging results in an early human trial. Researchers believe this could change how vaccines are distributed, especially in regions where refrigeration is difficult to maintain.

The Challenge Of Keeping Vaccines Cold

Vaccines are sensitive biological products. Exposure to excessive heat or freezing temperatures can damage their active ingredients and reduce their ability to trigger an immune response.

To avoid this, countries rely on a carefully managed cold chain that transports vaccines from manufacturing facilities to warehouses, regional storage centers and finally to clinics. This process requires specialised equipment, trained staff and constant monitoring of temperatures.

However, maintaining this system is both expensive and complex. Equipment failures, power outages and transport delays can disrupt the cold chain at any stage. In rural or remote regions where electricity supply is unreliable, these challenges become even more serious.

Global health experts estimate that a large number of vaccines are lost every year because of temperature control failures during storage and transport. This leads to wasted doses, increased costs and gaps in vaccination coverage.

Because of these difficulties, scientists have long been searching for ways to develop vaccines that can remain effective without strict refrigeration.

A Vaccine That Can Survive At Room Temperature

One promising development is a vaccine candidate called SPVX02, which targets tetanus and diphtheria. It has been developed by the biotechnology company Stablepharma with support from the UK Health Security Agency.

What makes this vaccine different is the technology used to stabilize its active ingredients. The formulation allows the vaccine to tolerate higher temperatures without losing potency.

Early findings from a Phase I clinical trial suggest the vaccine can remain stable at around 30°C for as long as two years. The study was carried out at the Vaccine Development and Evaluation Centre in the United Kingdom and involved healthy volunteers.

Phase I trials are the earliest stage of human testing. At this stage, researchers focus mainly on safety, possible side effects and the body’s immune response.

If further trials confirm these findings, the same stabilization technology could potentially be applied to other vaccines as well.

Why This Could Matter For India

A fridge free vaccine could have major implications for countries such as India, which runs one of the largest immunization programmes in the world.

India’s Universal Immunisation Programme delivers vaccines to millions of children every year. To reach remote villages and urban settlements, the programme depends on a vast cold chain network that includes refrigerated storage facilities, specialized transport and vaccine carriers.

Maintaining this infrastructure across a country with varied climates and uneven electricity supply can be difficult. Heat exposure during transport or power failures can lead to spoilage and wastage.

A thermostable vaccine that remains effective at room temperature could simplify this process significantly. It would reduce dependence on refrigeration, lower costs and make it easier to deliver vaccines in remote or resource limited areas.

What Happens Next

Although the early results are encouraging, the vaccine still needs to go through larger clinical trials before it can be approved for widespread use.

Future studies will involve more participants and compare the new formulation with existing refrigerated vaccines to confirm its effectiveness.

If the technology proves successful, researchers believe it could be adapted for many other vaccines in the future. That possibility could reshape how immunization programmes operate worldwide and help bring life saving vaccines to communities that have long struggled to access them.

A federal judge in Massachusetts has blocked a series of vaccine policy changes introduced by U.S. Health Secretary Robert F. Kennedy Jr., dealing a significant setback to the Trump administration’s health agenda. The ruling temporarily halts new vaccine recommendations and reverses recent decisions made by the government’s vaccine advisory panel.

The decision was issued by Judge Brian Murphy of the U.S. District Court for the District of Massachusetts. It came after several medical organizations argued that the government’s actions were not based on scientific evidence and could endanger public health.

Court Says Science Was Ignored

In his ruling, Judge Murphy said vaccine policy decisions have traditionally been based on careful review of scientific data. This process is also required under federal law.

However, he wrote that the government had ignored these standards while introducing changes to vaccination guidelines. According to the court, the decisions undermined the integrity of the process that normally guides national immunization recommendations.

The ruling stops the government from implementing those changes for now. It also means the Advisory Committee on Immunization Practices, or ACIP, cannot hold its scheduled meeting this week.

Lawsuit From Medical Organizations

The case was brought by six major medical organizations, including the American Academy of Pediatrics. They claimed that the new policies changed the childhood vaccine schedule without proper scientific review.

The groups argued that the government had made “arbitrary and capricious” decisions by bypassing the usual evidence-based process. They also questioned the qualifications of several members appointed to the vaccine advisory committee.

Judge Murphy noted in his ruling that only six of the 15 committee members appeared to have meaningful experience with vaccines. The committee is responsible for recommending which vaccines Americans should receive and when.

Read: 15 States Sue Trump Administration Over Revised Vaccine Schedule

Changes to Childhood Vaccine Schedule

The lawsuit focused on a series of policy changes introduced over the past year. These included reducing the number of diseases covered under the routine childhood immunization schedule.

In January 2026, federal officials announced a new vaccine schedule that lowered the number of diseases children are routinely vaccinated against from 17 to 11.

The changes also affected recommendations for Covid vaccines. Earlier in 2025, Kennedy announced that Covid shots would no longer be recommended for healthy children or pregnant women.

Health officials supporting the changes argued that growing mistrust of vaccines had reduced vaccination rates. They believed simplifying the schedule might rebuild public confidence.

However, critics said the changes were rushed and not supported by strong scientific review.

Experts Warn About Public Health Risks

Many doctors and public health experts strongly opposed the new policies. They warned that weakening vaccine recommendations could lead to outbreaks of preventable diseases.

Medical groups say childhood vaccination programs have been one of the most successful public health efforts in modern history. Vaccines protect children from serious diseases such as measles, polio and hepatitis B.

Several organizations also filed supporting legal documents in the case, including public health experts and research groups.

Government Likely to Appeal

Officials from the Department of Health and Human Services said the government plans to challenge the ruling. A spokesperson said the administration expects the decision to be overturned.

For now, however, the court order means previous vaccine recommendations will remain in place.

Medical organizations welcomed the ruling. They said it helps restore a science-based process that has guided vaccine policy for decades and protected the health of millions of children.

Read: CDC Vaccine Schedule: Coverage Falls From 17 to 11 Diseases For Children

What Were The Changes Suggested In The Latest CDC Vaccine Schedule?

The federal health department sought to reduce the number of shots American children receive, announced that the new Centers for Disease Control and Prevention (CDC), vaccine schedule will include routine shots for 11 diseases for children. This is down from 17 diseases, which were earlier included. Jim O'Neill, who is the acting director of the CDC updated the agency's immunization schedule to reflect the changes, effective immediately.

The most controversial change is the narrowing of recommendations for several common childhood vaccines. Immunization against the following illnesses is now advised only for high-risk children or after consultation with a health care provider:

• Hepatitis A
• Hepatitis B
• Meningococcal disease
• Rotavirus
• Influenza
• Respiratory syncytial virus, or RSV

Covid-19 vaccination has also shifted to a consultation-based recommendation rather than routine use for all children.

This means shots that were once automatically given at set ages, including at birth, during infancy, and in adolescence, may now depend on individual medical discussions rather than standard guidance.

Water remains the most reliable and effective way to keep the body hydrated during hot weather. However, many people have increasingly turned to energy drinks during long workdays or busy schedules, hoping to stay refreshed or energized.

Experts warn that relying on these drinks instead of water can create several health risks, particularly when temperatures are high.

Energy drinks are typically marketed as quick solutions for fatigue and low energy. They often contain high levels of caffeine, added sugars and stimulants that may temporarily increase alertness.

While this short term boost may seem appealing, experts say these drinks are not designed to support proper hydration. When consumed frequently, especially during summer, they can place extra strain on the body rather than helping it stay cool and hydrated.

Dr Arun Sachdeva, an Internal Medicine Specialist at Felix Healthcare in Bengaluru, explains that replacing water with energy drinks during hot weather can interfere with the body’s natural hydration balance.

According to him, excessive consumption of these beverages may contribute to both immediate and long term health concerns, particularly when the body is already losing fluids through sweating.

Higher Risk Of Dehydration

During summer, when sweating already causes significant water loss, this effect may make it harder for the body to maintain proper hydration.

When energy drinks replace water intake, the risk of dehydration increases. Common symptoms of dehydration include fatigue, dizziness, headaches and dry mouth. In more severe cases, dehydration can also affect concentration, physical performance and overall wellbeing.

Excessive Stress On The Heart

For people who already have high blood pressure or existing heart conditions, excessive intake of energy drinks could increase the risk of heart palpitations or irregular heart rhythms. Experts therefore recommend limiting the consumption of these beverages, particularly during periods of intense heat.

High Sugar And Empty Calories

Frequent spikes in blood sugar levels may gradually increase the risk of metabolic disorders. Over time, consistently high sugar consumption can contribute to health problems such as obesity and type 2 diabetes.

Therefore, doctors advise paying attention to sugar content in beverages, especially during hot weather when people tend to drink more fluids throughout the day.

Sleep Disruption And Energy Crashes

Instead of providing sustained energy, regular consumption of energy drinks may lead to temporary stimulation followed by sudden drops in energy levels.

This cycle can leave individuals feeling even more tired later in the day, creating a pattern where they rely on more caffeinated drinks to stay alert.

Kidney Health And Hydration

When the body does not receive enough water, the kidneys may struggle to function efficiently. Over time, poor hydration can increase the risk of kidney related problems and may affect the body’s ability to regulate fluid levels effectively.

Why Water Remains The Best Choice

Doctors emphasize that water remains the safest and most effective drink for maintaining hydration during summer. It helps regulate body temperature, supports organ function and replaces fluids lost through sweating without introducing excess caffeine, sugar or stimulants.

Energy drinks may occasionally provide a quick boost of alertness, but they should not be used as a substitute for water. Maintaining regular water intake throughout the day remains one of the simplest and most effective ways to support overall health during hot weather.