Stroke, commonly known as brain haemorrhage, occurs when the blood flow to the brain is blocked or there is sudden bleeding in the brain. It is categorized into two types—a stroke that occurs because blood flow to the brain is blocked is called an ischemic stroke. In this case, the brain cannot get oxygen and nutrients from the blood, which leads to the brain cells dying within minutes. The second type of stroke occurs because of sudden bleeding in the brain is called a hemorrhagic stroke. The leaked blood results in pressure on brain cells, damaging them.

How Common Is Stroke?

According to statistics, someone in the UK has a stroke in every five minutes. Moreover, the UK Stroke Association reported that the UK is home to 1.3 million stroke survivors. Globally, around 15 million people suffer from stroke every year, as per World Health Organization (WHO).

How To Identify Stroke?

Stroke is a life-threatening condition and can cause immediate death. Even for survivors, it can cause irreversible changes in their everyday functioining. If you are having a stroke or about to suffer from one, there are several symptoms that you will experience.

Face weakness: Can the person smile? Has their mouth or eye drooped?

Arm weakness: Can the person raise both arms fully and keep them there?

Speech problems: Can the person speak clearly and understand what you say? Is their speech slurred

Time to call 999: If you see any one of these signs

Besides, these are the symptoms to identify a stroke:

Sudden weakness or numbness on one side of the body, including legs, hands or feet.

Difficulty finding words or speaking in clear sentences.

Sudden blurred vision or loss of sight in one or both eyes.

Sudden memory loss or confusion.

Sudden dizziness, unsteadiness or a sudden fall.

A sudden, severe headache.

Besides these, there are certain symptoms that indicate the risk of an upcoming stroke even days before. They are:

'Funny Turn'

A mini-stroke, or transient ischaemic attack (TIA), is the same as a stroke but with symptoms that last for just a short amount of time and less than 24 hours. People can mistake this up for a "funny turn" as it passes quickly or think it is a result of being tired or having a migraine. A stroke is caused by a blockage cutting off the blood supply to part of the brain - with a TIA, this is just temporary. But it must be taken seriously, says the Stroke Association.

The charity warns: "More than one in 12 people will have a stroke within a week of having a mini-stroke, and the greatest risk is within the first few days. If you have a mini-stroke, you must get it treated urgently. Around 46,000 people in the UK have their first mini-stroke every year. Most people don't realise it is a medical emergency, and so they don't take the right action. The symptoms of a mini-stroke may only be temporary, but they almost certainly indicate an underlying problem that needs to be assessed and treated. Around 10,000 strokes could be prevented every year if they were urgently investigated and treated appropriately.

Unusual Headache

Sometimes a certain kind of headache can be an early warning of a pending stroke. A 2020 study published in the Journal of Headache and Pain found that out of 550 adults 81 - or 14.7%-had a headache in the seven days before they had a stroke, known as a sentinel headache. Researchers say these were described as a sudden, intense, persistent headache, with features different from any usual previous headache. It happens days or even weeks before the stroke and affects 15% to 60% of patients.

Of those who had a headache, 46 had a tension-like headache, 33 a migraine and two a thunderclap headache. The headaches often lasted until stroke symptoms happened, but some disappeared within a few hours. Researchers said that these headaches represent sentinel headaches. Sudden onset of such headaches should be cause for alarm about a stroke.

'Thumping heart'

Atrial fibrillation (AF) is a heart condition that causes an irregular heartbeat and increases your risk of a serious stroke. The Stroke Association says, "Normally, blood flows into the heart and gets fully pumped out every time the heart beats. But in AF, blood can pool inside the heart. A clot can form in the blood and then travel to the brain, causing a stroke.

"AF can make you five times more likely to have a stroke. Strokes due to AF tend to be more serious, with more damage to the brain and worse long-term effects."

The charity advises that AF often has no symptoms which means you might only find out you have AF during a routine medical check-up or after a stroke. However, is adds possible symptoms include palpitations where you feel as if "your heart is fluttering, thumping or skipping a beat". Other AF symptoms include tiredness, feeling breathless or faint, or chest pain.

On the day of World Malaria Day, as we raise awareness on the dangers posed by this mosquito-borne disease, let's delve a bit deeper into how malaria is different from the other mosquito-borne diseases.

Dengue vs Malaria

Both malaria and dengue are transmitted by female mosquitoes and cause severe illness in humans. There are certain similarities between the two diseases and the mosquito species, which is why the patients and diagnoses are often confused.

As per the co-Principal Investigator, Dr Charles Guissou, for the Target Malaria, a vector control research alliance's Target Malaria Burkina Faso at the Institut de Recherche en Sciences de la Santé, "Dengue and malaria are two very different diseases caused by different pathogens and different mosquito species." “Misdiagnosis between malaria and dengue is common, and this can then contribute to inappropriate medical care.”

Every year, malaria causes 200 million cases worldwide, leading to 600,000 deaths. Many of these cases are from Africa, where children and pregnant women pay the highest price. The World Health Organization (WHO) has also reported that in 2022, Africa was home to 95% of malaria cases and 95% of malaria deaths. The global incidence of dengue has grown significantly in recent decades. Cases reported to WHO increased from 505,430 in 2000 to 6.5 million in 2023.

Dr Ajay Gupta, Head & Director - Internal Medicine, Max Super Speciality Hospital, Vaishali also points out the key differences between malaria and other mosquito-borne diseases. He says, "Malaria is caused by Plasmodium parasites, transmitted through the bite of infected Anopheles mosquitoes. In contrast, dengue, chikungunya, and Zika viruses are transmitted by Aedes mosquitoes. This distinction in the type of mosquito also reflects differences in peak biting times—Anopheles mosquitoes bite during nighttime, while Aedes mosquitoes are daytime biters."

"Another key difference lies in complications and disease progression. Malaria, especially caused by Plasmodium falciparum, can progress rapidly to severe illness with cerebral involvement, anemia, kidney failure, and even death if not promptly treated. Dengue, on the other hand, is known for a sudden drop in platelet count and risk of hemorrhage. Chikungunya commonly leads to prolonged joint pain, sometimes lasting weeks or even months after the infection clears," notes the doctor.

There is also a difference between how the mosquitoes that spread dengue and malaria.

The Aedes Mosquito

It is responsible for spreading dengue and has white stripes down the center of the thorax. It also has a resting position where its body is kept low and parallel to the ground, with the proboscis angled downward. It is slender, and the wings have distinctive white markings.

The Anopheles Mosquito

It is responsible for causing malaria and has long palps. It is dark in color and the resting position follows it abdomen at a 45-degree angle to the surface.

Zika Virus

Zika is a viral infection also transmitted by Aedes mosquitoes, which is the first difference from malaria, in the species of mosquito that causes it. As per the WHO, those with Zika virus do not tend to experience symptoms, and if they do, it includes rash, fever, conjunctivitis, and muscle and joint pain. The symptoms are also what makes it different. They appear from 3 to 14 days after being bitten.

Chikungunya

This is also caused by Aedes mosquitoes, and the symptoms usually appear within 4 to 8 days after infection. The symptoms include fever, joint pain, headaches, and nausea.

Yellow Fever

This is caused by Aedes and haemagogus mosquitoes. People who are infected with this virus do not get sick and experience only mild symptoms. As per the Centers for Disease Control and Prevention (CDC), 12% of people who have symptoms develop serious illness, which includes organ failure and jaundice.

The key difference between all other mosquito-borne diseases and malaria is the species of the mosquito that causes it. While all the others are caused by Aedes, malaria is caused by the Anopheles.

What Else Makes Malaria Different Other Than The Type Of Mosquito That Causes It?

Drinking Beer Could Increase Chances Of Infection

According to the scientists at the University of Emory, in their 2010 study, they found that beer produces an odour in your body that is irresistible to the malaria-carrying mosquitoes.

It Could Take Four Years To Develop Symptoms

There are rare strains of this disease which could in fact take months or even years to get diagnosed. In one of the rare cases, malaria was diagnosed four years later the individuals were infected, reported UK's The Telegraph.

Malaria And Its Connection With Snow White

In 1943, Disney was tasked with creating a film to promote public health awareness. The result? The Winged Scourge — a rather unusual PSA where the Seven Dwarfs learn how to fight off malaria-spreading mosquitoes.

Malaria Has Killed Four Popes, And At Least Eight Presidents Have Suffered From It

George Washington battled malaria, and the disease is also believed to have claimed the lives of Pope Leo and Pope Sixtus—just a few of its prominent victims.

Malaria And India

The doctor also points out that diagnosis and treatment also vary. "Malaria is typically confirmed with a blood smear or rapid diagnostic test and is treated with specific antimalarial drugs. There is no antiviral treatment for dengue, chikungunya, or Zika—management is primarily supportive," he says.

In India, we often see a spike in these illnesses during and after the monsoon season, However, malaria control efforts—such as early diagnosis, insecticide-treated bed nets, and vector control—have significantly reduced the burden in recent years.

"Preventive strategies like eliminating stagnant water, using mosquito repellents, and ensuring proper sanitation are universally effective. But recognizing the distinct nature of malaria is key to prompt diagnosis and management," notes Dr Gupta.

In 2022, about 1 in 5, which is around 702,880, people died due to cardiovascular diseases (CVD) in the United States. There are many factors around you that affect your heart health. Things like what food you eat, whether the area you live in is polluted or not and also what kind of lifestyle you lead. There are many risk factors for heart diseases like high blood pressure, high cholesterol levels or smoking, which are key risk factors according to the Centers of Disease Control and Prevention (CDC). The CDC explains about 47% of US citizens have at least one of these three risk factors.

Another risk factor could be the place you live in. A new study published in the European Society of Cardiology April 2025 revealed that the walkability of a neighborhood can play a big role for your cardiovascular health. The study revealed that individuals living in areas with low walkability had a 5% higher risk of developing CVD compared to those in very walkable neighborhoods. Interestingly, even in neighborhoods that improved in walkability over time, the risk of CVD remained about 5% higher for those who started in low-walkability areas, possibly due to the lasting effects of earlier sedentary habits.

What Makes A Neighborhood Walk-Friendly?

To figure out how walkable a neighborhood is, the researchers in the study looked at several things. They checked how many people lived in the area (population density), how many shops were nearby, if there were parks and green spaces, and if there were sidewalks to walk on. They also considered if different types of buildings were mixed together (like shops and homes), if there was good public transportation, and how well the streets connected to each other. All these things together helped them decide how easy it was to walk around in a certain neighborhood.

Researchers studied over three million adults who were at least 40 years old and didn't have any heart problems when the study started. The researchers kept track of how walkable each person's neighborhood was for 13 years. They also checked if the walkability of these neighborhoods stayed the same, got better, or got worse during that time.

The findings of this study support what doctors have known for a long time: moving your body is good for your health, especially your heart. What's interesting is that you don't need to do intense workouts to see the benefits. Even small amounts of activity, like walking your dog in a park or carrying your groceries home from the store, can make a difference. These little bursts of energy throughout the day can add up and help lower your risk of getting heart disease.

Should People Opt For More Walkable Places?

A report from 2023 from Smart Growth America found that less than 7% of people in America actually live in very walkable urban neighborhoods. Interestingly, studies have shown that minority groups often live in more walkable neighborhoods. However, these same groups are also more likely to suffer from heart and blood sugar problems. This might be because even in walkable areas, factors like safety, clean environments, and good sidewalks and parks might not be available in all neighborhoods.

Even if you don't live in a very walkable area, there are still things you can do to move more. You might need to get a little creative! You can try lifting weights or doing yoga while you watch TV. If you drive to the store, park a little further away so you have to walk more. Take the stairs instead of the elevator. Stand up and move around when you're on the phone, have walking meetings if possible, and make sure to get up and stretch every hour.

During a recent conference on drug addiction, the US Health Secretary Robert F Kennedy Jr. shared a personal story about his own battle with drug addiction and his journey to recovery. He also emphasized on the importance of helping young people find meaning in life. His speech at the Rx and Illicit Drug Summit in Nashville, Tennessee, emphasized the need for prevention, community, and spiritual support in addressing substance abuse.

RFK Jr.'s Struggle With Addiction

Kennedy revealed that he was addicted to heroin for 14 years. It started during his teenage years. During that time, he constantly promised to quit to himself and his family, but he felt powerless to follow through.

“I didn’t want to be someone who woke up every morning thinking about drugs,” he said, describing the feeling of being unable to “keep contracts” with himself. He shared that he felt like he was born with a hole inside him—something many addicts feel—that he tried to fill with drugs.

He also called addiction "a source of misery, but also a symptom of misery". He stressed that threats of overdose or ruined lives often have little impact on those who are already suffering. “Every addict feels that way in one way or another... and the only thing that works are drugs,” he said.

His message to the 3,000 attendees focused on how deeper issues like hopelessness and disconnection from community contribute to addiction.

Finding A Way Out Through Faith

RFK Jr. went on to describe his recovery journey that started after he read a book by Swiss psychiatrist Carl Jung, who suggested that people who believe in God tend to recover more effectively. This inspired him and rekindled his faith in God. He began to attend the 12-step meetings. God was mentioned in his speech over 20 times, and it was noted that spirituality played a big role in his healing.

RFK Jr. also acknowledged criticism from public health experts and was interrupted several times by hecklers. Without directly engaging them, he said he tries to learn from everyone—“even the people who give me the finger.”

Prevention Through Purpose

While RFK Jr. did praise tools like Suboxone, methadone, and access to rehab, his main focus remained on prevention. “We have this whole generation of kids who’ve lost hope in their future,” he said. According to him, restoring connections to family, community, and purpose is crucial.

He encouraged policy changes that would promote stronger family bonds—such as phone-free meals—and more opportunities for young people to engage in service. “The best way to overcome hopelessness,” he said, “is to wake up each day and pray, ‘Please make me useful to another human being today.’”

While Kennedy’s speech resonated with many, others pushed back on his approach. Researcher Caleb Banta-Green, who was removed after shouting, later said that while spirituality can be helpful, science-based interventions must be prioritized and properly funded.

While Kennedy’s speech resonated with many, others pushed back on his approach. Researcher Caleb Banta-Green, who was removed after shouting, later said that while spirituality can be helpful, science-based interventions must be prioritized and properly funded.