Smokers who make the decision to quit will experience immediate health benefits, including a rapid reduction in their risk of atrial fibrillation (A-Fib), according to new research published in JACC: Clinical Electrophysiology. The study, conducted by Dr. Gregory Marcus, a cardiologist at the University of California, San Francisco, offers compelling evidence for smokers to quit, showing that it’s never too late to avoid the damaging effects of smoking on heart health.

Dr. Marcus, the senior author of the study, emphasized that A-Fib can be prevented even in individuals who have smoked for years. "The findings provide a compelling new reason to show current smokers that it’s not too late to quit, and that having smoked in the past doesn’t mean you’re ‘destined’ to develop A-Fib," Marcus explained. "Even for the current and longtime smoker, A-Fib can still be avoided."

What is Atrial Fibrillation (A-Fib)?

"There’s strong evidence that smoking increases the risk of A-Fib," Marcus said. "But the benefits of quitting smoking have been less certain." With this in mind, his team sought to determine whether quitting could significantly lower a person’s risk of developing A-Fib, or if the risk would remain the same.

The research team analyzed data from over 146,700 current and former smokers, tracking their smoking habits and health over a 12-year period using data from the UK Biobank database. The results were promising: former smokers had a 13% lower risk of developing A-Fib compared to current smokers, while those who quit during the study saw an 18% reduction in their risk.

"This is likely a testament to the potency of reducing atrial fibrillation risk pretty shortly after quitting," Marcus said in a statement from the American College of Cardiology.

The findings highlight the importance of quitting smoking, not only for general health but specifically for reducing the risk of serious heart conditions like A-Fib.

Tips for Quitting Smoking

Quitting smoking is one of the most effective ways to lower the risk of A-Fib and improve overall heart health. While it can be challenging, the benefits of quitting are clear and immediate. Here are some tips to help you quit smoking successfully:

1. Choose a specific date to quit smoking and stick to it. Prepare yourself mentally and physically for this change.

2. Reach out to family, friends, or a support group to help keep you accountable. Sharing your goals with others can provide encouragement.

3. Options like nicotine patches, gum, or lozenges can help ease withdrawal symptoms and reduce cravings.

4. Identify situations that make you want to smoke, such as stress or social gatherings, and find healthy ways to cope with them.

5. Regular exercise can help distract you from cravings and improve your mood during the quitting process.

6. Drinking water can help flush nicotine out of your system faster, reducing cravings.

7. Activities like yoga, meditation, or deep breathing exercises can help manage stress, a common trigger for smoking.

Quitting smoking offers immediate and significant benefits, particularly in reducing the risk of atrial fibrillation. The latest research provides smokers with more motivation to quit, showing that it's never too late to take control of their heart health.

Amino acids are known for their role in brain function, energy, and overall health. But a new study has raised questions about tyrosine, an amino acid that occurs naturally in high-protein foods. It is also sold separately as a supplement as it helps in improving focus and overall mental performance.

Researchers analysing health and genetic data from more than 270,000 people found that higher tyrosine levels were linked with a shorter lifespan in men.

Additionally, genetic analysis suggested that higher tyrosine levels could cut life expectancy of men by nearly one year. No such significant association was found in women.

More About The Study

Researchers from the University of Hong Kong and the University of Georgia examined data from participants in the UK Biobank to investigate whether two amino acids, phenylalanine and tyrosine, were associated with lifespan.

Initially, higher levels of both amino acids appeared to be linked with a greater risk of death. However, when researchers accounted for the relationship between the two, tyrosine consistently stood out.

Using Mendelian randomisation, a genetic method that can help investigate causal relationships, the researchers found that genetically higher tyrosine levels were associated with approximately 0.91 fewer years of lifespan in men.

Also read: The New Nutrition Gap: Why Knowing What To Eat Doesn't Mean We Actually Eat It

Role Of Tyrosine When It Comes To Brain Health

Tyrosine is an amino acid that the body uses to make proteins as well as important neurotransmitters, including dopamine, norepinephrine and epinephrine.

Dopamine plays a role in motivation, mood and thinking, which is one reason tyrosine supplements are marketed as products that may support focus and mental performance.

However, tyrosine is not something people get only from supplements. It is naturally present in foods like meat, dairy products, eggs, soy, beans, nuts and seeds. This means the study does not suggest that people should stop eating protein-rich foods.

Also read: Protein Is In Everything, But Is Every Source Actually Healthy? Experts Explain

Are Tyrosine Supplements Dangerous?

One of the most important points about the research is that scientists did not conduct a clinical trial in which people were given tyrosine supplements and followed to see how long they lived.

Instead, researchers studied circulating tyrosine levels and used genetic data to investigate whether naturally occurring differences in tyrosine might influence lifespan.

Therefore, the findings cannot establish that taking a tyrosine supplement will shorten a man's life by nearly one year.

The researchers also said more research is needed to understand why the association appeared stronger in men and what biological mechanisms may be involved.

The study raises the possibility that tyrosine may be connected with biological pathways involved in ageing and metabolism. Previous research has also linked amino-acid metabolism with conditions such as insulin resistance, but whether this explains the association with lifespan remains uncertain.

The researchers also found an apparent sex difference, with the association between tyrosine and shorter lifespan being significant in men but not women.

The findings must be best viewed as an observation rather than a reason to panic about tyrosine supplements. The study suggests that tyrosine may need closer investigation in longevity research. Further studies are needed before doctors can recommend reducing tyrosine intake or avoiding supplements.

Dengue cases are rising in Florida, with 73 locally acquired infections reported statewide, including 59 in Hillsborough County, according to the latest Florida Department of Health surveillance report covering August 23–29.

Ten counties are currently under a mosquito-borne illness advisory or alert, prompting health officials to urge residents to take precautions against mosquito bites.

Florida Reports 208 Dengue Cases In 2026

According to the CDC Dengue Data Dashboard, Florida has recorded 208 dengue cases this year. Of these, 73 were locally acquired, while 135 were travel-associated. Hillsborough County accounts for most of the locally acquired infections, with 59 cases. Other local cases have been reported in Miami-Dade, Pinellas, Palm Beach, Orange and Citrus counties.

The CDC has reported 1,735 dengue cases across the US and its territories in 2026 as of early September. New York, California, Washington and New Jersey have also reported cases.

Health Officials Urge Mosquito Bite Protection

Dengue is transmitted through the bite of infected Aedes mosquitoes, which can breed in small amounts of standing water around homes and businesses. Even a bottle cap containing stagnant water can provide enough water for mosquitoes to breed.

State Surgeon General Dr. Joseph A. Ladapo joined local officials in Hillsborough County to urge residents to protect themselves from mosquito-borne illnesses.

“As families across Florida prepare to enjoy Labor Day weekend, I encourage everyone to take few simple precautions to protect themselves and their families from mosquitos bites,” said State Surgeon General Dr. Joseph A. Ladapo.

“Use insect repellent, cover up when possible, and remove standing water around your home. Individual prevention helps protect you and your community,” he added.

Why Are Locally Acquired Dengue Cases Rising In The US?

Most dengue infections in the continental US are still associated with international travel. But when an infected traveller returns to an area where Aedes aegypti or Aedes albopictus mosquitoes are present, the virus can enter the local mosquito population.

An infected mosquito can then transmit the virus to other people, creating a cycle of local transmission.

In 2024, 97.2% of dengue cases in the US were travel-associated, according to the CDC. However, states such as Florida can experience local outbreaks because dengue-carrying mosquitoes are already established in parts of the country.

Local transmission requires three factors to overlap:

• an infected person,
• competent mosquitoes
• people who can become infected.

When an Aedes mosquito bites someone carrying dengue virus, it can acquire the virus and later pass it to another person. Repeated mosquito-to-human transmission can then fuel a local outbreak.

Climate May Also Influence Dengue Spread

Temperature and other environmental conditions affect mosquito survival, reproduction and biting behavior, as well as how quickly dengue virus develops inside the mosquito.

Warmer conditions can therefore create more favorable conditions for dengue transmission and potentially expand the areas where these mosquitoes can survive.

The World Health Organization (WHO) today recognized India for sustaining maternal and neonatal tetanus elimination for a decade.

The recognition came during the 79th session of the WHO Regional Committee for South-East Asia in Dili, Timor-Leste, and was received by Union Health Minister JP Nadda.

“A proud moment for India at the 79th Session of the WHO Regional Committee for South-East Asia!” the Health Ministry said in a post on X.

India was also honored for its “strong leadership in tackling NCDs through primary health care, with national targets achieved for protocol-based management of hypertension and diabetes.”

The Ministry described the recognition as “a tribute to our frontline health workers, whose dedication continues to strengthen India’s health system and improve health outcomes for all.”

India’s Journey Towards Tetanus Elimination

India was validated for maternal and neonatal tetanus elimination (MNTE) in April 2015, ahead of the global target of December 2015.

The country completed validation across all 36 states and union territories.

The achievement was driven by high routine immunization coverage, institutional births, clean delivery and clean cord practices, and an effective surveillance system.

Elimination as a public health problem means the annual rate of maternal and neonatal tetanus is less than one case per 1,000 live births.

Also read:Indigenous Td Vaccine Rollout In India To Boost Immunity In Children, Adults, Say Experts

How Were Mothers and Newborns Protected?

The risk of tetanus infection in mothers and newborns is linked to unsafe deliveries, particularly those taking place in insanitary conditions or assisted by untrained traditional birth attendants, or dais.

In the 1980s, more than one million deaths every year were attributed to tetanus, with an estimated 787,000 deaths from neonatal tetanus alone in India in 1988.

In 1989, the World Health Assembly adopted a resolution to eliminate neonatal tetanus by 1995 through increased availability of tetanus toxoid vaccine.

In the early 1990s, maternal tetanus was estimated to account for about 5% of maternal mortality, or 15,000–30,000 deaths every year.

In 1999, maternal tetanus elimination was added to the neonatal tetanus elimination program, which was renamed the Maternal and Neonatal Tetanus Elimination (MNTE) Program.

"Tetanus is a dangerous disease that accounted for hundreds of thousands of deaths in the past, mainly among newborn babies. These babies were at risk because deliveries were often conducted in unclean settings where it was easy for the freshly cut umbilical stump to get infected with the spores of tetanus bacteria from the environment," Dr. Rajeev Jayadevan, Ex-President of IMA Cochin and Convener of the Research Cell, Kerala, told HealthandMe.

He said that the infection rate dropped drastically after shifting deliveries to clean hospital facilities, conducted by professionals using sterile instruments.

"Simultaneously, widespread vaccination of pregnant women ensured that maternal protective antibodies were transferred across the placenta, giving babies built-in immunity right from birth," the expert added.

Read More: Thailand Eliminates Rubella: How This Vaccine-Preventable Virus Causes Birth Defects

TT Immunization During Pregnancy

TT immunization during pregnancy played a major role in reducing maternal and neonatal tetanus cases.

The MNTE program focused on strengthening routine immunization, including tetanus toxoid (TT) vaccine coverage, improving clean delivery practices through institutional births and training birth attendants.

The launch of the National Rural Health Mission (NRHM) in 2005 further strengthened these initiatives. Schemes promoting safe motherhood, including the Janani Suraksha Yojana (JSY), also gave the program a boost.

Mission Indradhanush and Immunization Coverage

Further, Mission Indradhanush launched in 2014, set a goal of increasing immunization coverage by 5% every year.

Focusing on 201 districts with low routine immunization performance, the initiative reached children who were unvaccinated or partially vaccinated against seven vaccine-preventable diseases: diphtheria, whooping cough, tetanus, polio, tuberculosis, measles and hepatitis B.

Greater awareness about the availability, safety and efficacy of life-saving vaccines, the importance of safe deliveries and government entitlements for pregnant women contributed to increased immunization coverage and helped India achieve maternal and neonatal tetanus elimination.