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The main cause of death globally is still heart disease. Heart attacks may occur suddenly without any warning signs. However, in the film industry, intense chest pain would be portrayed for a heart attack. In actuality, many patients have slight symptoms that go unnoticed until the time of their heart attack days or even weeks prior to that.
Heart attacks do not always announce themselves with dramatic chest pain. Often, they manifest in subtle, easy-to-dismiss ways. Recognizing these overlooked warning signs and taking proactive steps toward cardiovascular health can save lives. If you or someone you know experiences any of these symptoms, seeking immediate medical care is crucial. Prioritizing heart health today can help prevent life-threatening complications in the future.
1. Discomfort Pressure in the Chest
One of the earliest and most common warning signs of an impending heart attack is pressure, tightness, or fullness in the chest. This pain is not typically sharp and sudden, like most people associate with a heart attack, but it can be intermittent, coming in waves, and lasting for several minutes before fading away. According to the American Heart Association, this is one of the red flags when accompanied by exertion. If you have persistent chest pressure, you should call emergency services immediately.
2. Pain Radiating to Other Parts of the Body
The well-known symptom of chest pain can also manifest discomfort related to a heart attack as pain radiating to other parts of the body. It is not unusual for people experiencing this kind of heart attack to report feeling pain in the shoulders, arms, back, neck, and even jaw. The vagus nerve is one that connects the heart to the brain, abdomen, and neck. The pain may be referred to these regions. In case you experience a sudden, unexplained pain in these regions, especially when exercising, seek a doctor's opinion.
3. Dizziness and Lightheadedness
Feeling dizziness upon standing up quickly or missing a meal is common, but unexplained dizziness often with chest pain or shortness of breath is the first sign of heart attack. Sudden hypotension can seriously decrease the blood supply to the brain and cause dizziness. Dizziness that does not go away on its own should not be ignored.
4. Unexplained Fatigue
It often happens that excessive tiredness, particularly in a busy lifestyle, is considered trivial, but ongoing fatigue, mostly in women, is a predictor of heart failure. According to some studies, extreme fatigue often starts a month before a heart attack, primarily in women. This is simply because the heart cannot pump well enough, leaving insufficient oxygen available to muscles and organs. Consult a healthcare professional if you become increasingly tired over time, yet are getting all the rest in the world.
5. Nausea, Indigestion, or Stomach Pain
Digestive problems like nausea, vomiting, or indigestion are often mistaken for acid reflux or food poisoning. However, these symptoms can also indicate reduced blood flow to the digestive tract, a common precursor to heart attacks. If you experience gastrointestinal distress alongside other symptoms like dizziness or chest discomfort, it's important to seek medical advice immediately.
6. Cold Sweats and Excessive Perspiration
Without apparent reason, a heart attack might be signaled by sudden sweating without any exercise or hot weather conditions. The heart's inability to function properly creates the body's "fight or flight" reaction, which means excessive sweating will occur. Be aware of your body and never ignore a cold sweat, particularly if it coincides with other symptoms.
7. Heart palpitations or irregular heartbeat
A racing or irregular heartbeat can be a normal reaction to stress or caffeine consumption. However, regular or unprovoked heart palpitations may indicate that the heart is under duress. If the heart is not getting enough oxygen-rich blood, it can start to beat irregularly. If you experience palpitations along with dizziness, chest pain, or shortness of breath, you should see a doctor right away.
8. Shortness of Breath
If suddenly climbing stairs or performing other everyday activities becomes a problem, then there may be a heart issue. Shortness of breath usually occurs with heart conditions because the circulation is not adequate and less oxygen is provided to the lungs. This symptom can occur either with or without chest pain and is an important indicator of the presence of underlying heart disease. If you find yourself experiencing sudden unexplained breathlessness, then seek a healthcare provider as soon as possible.
Early detection of these symptoms and early intervention can help avoid a life-threatening heart attack. You should visit a doctor if you feel the following symptoms:
Although heart attacks may come out of nowhere, lifestyle plays an important role in reducing a patient's risk; here are some heart-healthy habits to consider:
Take on a Heart-Healthy Diet: Focus on consuming whole foods, lean proteins, healthy fats, and fiber-rich fruits and vegetables. Try to limit processed foods, saturated fats, and added sugars.
Stay Active: Engage in at least 30 minutes of moderate physical activity most days of the week to strengthen your heart and improve blood circulation.
Smoking. Smoking is probably the single largest risk factor for heart disease. If you are a smoker, quitting can easily be the single best thing you can do to improve your heart health.
Deal with Stress: Chronic stress leads to heart disease. Relaxed people through various relaxation techniques including yoga, meditation, and even deep breathing, have lesser stresses.
Regular health checks Monitor blood pressure, cholesterol levels, and blood sugar on a regular basis. The risk factors' early detection can help avoid serious complications.
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Dialysis patients who took daily fish oil supplements had a 43 percent lower risk of major cardiovascular events, according to a large international clinical trial jointly led in Australia by Monash Health and the School of Clinical Sciences at Monash University.
Published in The New England Journal of Medicine, the study found that participants who took four grams of fish oil each day experienced significantly fewer major cardiovascular events, including heart attack, stroke, cardiac death and vascular-related amputations than those who received a placebo.
The supplement contained the omega-3 fatty acids EPA and DHA, which are naturally found in fish oil.
Adjunct Professor Kevan Polkinghorne, a nephrologist at Monash Health and adjunct in the School of Clinical Sciences, led the Australian portion of the trial said: "Patients on dialysis have extremely high cardiovascular risk, and very few therapies have been shown to reduce that risk," Professor Polkinghorne said. "In a field where many trials have been negative, this is a significant finding.
"Dialysis patients typically have much lower levels of EPA and DHA than the general population. This may help explain the magnitude of benefit observed in this group."
He also noted that results applied specifically to people undergoing haemodialysis for kidney failure and the findings should not be generalized to healthy individuals or to other groups of patients.
Omega-3 fatty acids are polyunsaturated fats known for their crucial role in brain function and overall mental health. Fish oil is particularly rich in EPA and DHA, which are vital components of cell membranes and have strong anti-inflammatory effects in the body.
These omega-3s play a critical role in human development, and they are primarily found in fatty fish and fish oil. Since many people do not consume enough fish, supplementation is often recommended to ensure adequate intake of these essential fatty acids.
Although the body can convert another type of omega-3, alpha-linolenic acid (ALA), into EPA and DHA, this process is not highly efficient. As a result, fish oil supplements may provide a convenient way to ensure optimal levels of omega-3s.
Some popular sources of Omega-3 include:
Earlier this month, Finance Minister Nirmala Sitharaman announced a surprising tax reduction for India's fishers and marine industry, and experts say it is good news for you too.
Until now, fish caught by Indian vessels beyond territorial waters and brought back to the country for mass consumption has been treated as import, attracting customs duties and integrated goods and services tax (GST).
The combined tax burden raises costs and compliance issues, which discouraged people from deep-sea and exclusive economic zone (EEZ) fishing as well as
However, during her Union Budget 2026 presentation, Sitharaman proposed that fish caught in the EEZ and high seas by Indian fishing vessels are treated as duty-free when brought into Indian ports and treated as exports when landed at foreign ports.
This means that the market availability for Omega-3 packed fishes including salmon, mackerel, tuna, herring and sardines will significantly increase as their existing steep prices see a tremendous fall.
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Malaria infected an estimated 282 million people and caused about 6,10,000 deaths worldwide in 2024, according to the World Health Organization’s (WHO) latest World Malaria Report. The report placed strong emphasis on drug resistance, warning that it remains one of the biggest threats to global elimination goals.
WHO-recommended vaccines helped prevent roughly 170 million cases and one million deaths last year, which is about nine million more than the year before. Around 95 per cent of malaria deaths occurred in the African Region, with children under five forming the largest share.
Within the WHO South-East Asia Region, India represented 73.3 per cent of all malaria cases and 88.7 per cent of all malaria-related deaths. The report also underscored that the world is nowhere close to meeting the targets set under the Global Technical Strategy for malaria 2016–2030.
However, a group of University of Nottingham researchers have now found a key protein that is an enticing target for new antimalarial interventions. The study looked at a protein called Aurora-related kinase 1 (ARK1), which plays an important role in the parasite’s unusual cell division.
ARK1 helps control the parasite’s mitosis (cell division) and organizes a structure called the spindle, which separates genetic material so new parasites can form.
Scientists turned off the ARK1 gene using genetic engineering techniques to see what would happen. Without ARK1, the parasites could not form proper spindles and failed to reproduce, suggesting the protein could be a weak spot that future malaria treatment.
"What makes this discovery so exciting is that the malaria parasite's 'Aurora' complex is very different from the version found in human cells," senior author Rita Tewari said.
Anopheles stephensi is a malaria-transmitting mosquito originally found in South Asia. Unlike many other malaria vectors, it thrives in cities and breeds in man-made water sources such as storage tanks, containers, and discarded tyres. It can carry both Plasmodium falciparum and P. vivax parasites.
In recent years, this mosquito has spread into several African countries, where it adapts easily and shows resistance to multiple insecticides. This expansion has increased the threat of urban malaria outbreaks, as highlighted by the World Health Organization.
At present, Anopheles stephensi has been detected in nine African countries and is proving difficult to control due to widespread insecticide resistance.
The report noted that WHO approved the world’s first malaria vaccines in 2021, and 24 countries have now added them to their regular immunisation schedules. Dr Tedros Adhanom Ghebreyesus, WHO Director-General, said that new preventive tools provide reason for optimism, but many obstacles remain.
He pointed out the rise in cases and deaths, the pressure from drug resistance, and the impact of reduced funding. These factors could undermine the progress achieved over the last twenty years.
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Men planning to conceive should practise caution while consuming antioxidant supplements, as excessive intake may affect sperm and early craniofacial development in babies, a Frontiers in Cell and Developmental Biology study shows.
Antioxidants are often promoted as powerful supplements that can help protect the body from chronic conditions, including cancer, chronic obstructive pulmonary disease and dementia.
However, researchers at the Texas A&M College of Veterinary Medicine and Biomedical Sciences (VMBS) found that consuming high levels of the antioxidant compounds N-acetyl-L-cysteine (NAC) and selenium (Se) can alter skull and facial shape in female children, even though the treated fathers did not exhibit obvious health problems.
Dr Michael Golding, a professor in the VMBS’ Department of Veterinary Physiology and Pharmacology, whose research team made the discovery said: "We know alcohol causes oxidative stress and we were looking to push back on it by adding a supplement known to lower oxidative stress.
"When we realized that offspring born to males that had only been given NAC were displaying skull and facial differences, it was a surprise because this molecule is universally thought to be good.
“When we sat down to think it through, we realized that it makes sense — you take a multivitamin to ensure that you’re in balance, but if the thing that you’re taking to ensure you’re in balance is unbalanced (the dose of antioxidants is too high), then you’re not doing a good thing.
“Sperm health is another performance metric; it’s just not one that we think about in everyday life. If you’re taking a high-dose antioxidant, you could be diminishing your reproductive fitness, and part of the journey toward the bad outcome is going to be the effects on the offspring.”
Antioxidants are important because they protect the fundamental structure of the human body, cells. They safeguard an individual's DNA and proteins from the damage caused by free radicals.
Research has shown that a diet high in antioxidants may help individuals prevent chronic diseases and mental health issues. But on the contrary, having too many antioxidants in your body could confuse your cells' responses, leading to more damage than intented.
Antioxidants basically neutralize free radicals in the body. These free radicals are extra atoms that are produced during the body's internal processes and also by some external factors.
Overproduction of these free radicals, during the process of oxidation in the human body, damages cell membranes and other structures, including cellular proteins, lipids and DNA. Oxidation can be exacerbated by stress, smoking, alcohol, sunlight and pollution.
In the long run, they can lead to diseases such as cancer and heart diseases. It is pertinent to note that the brain is prone to oxidative stress due to its high metabolic activity. Here, the role of antioxidants becomes particularly important as they fight oxidative stress which could otherwise lead to stroke, traumatic brain injury or neurodegenerative diseases like Alzheimer's.
If you take large amounts of antioxidants, then it could hamper the cell's defence mechanisms and normal signalling. Different types of antioxidants also have different properties, so they may not be interchangeable. Therefore, health experts advise people to be mindful of the amount of antioxidant-rich food they are including in your diet. Notably, studies have found that antioxidant supplements have a lower impact such as natural food items.
Here Are Top 10 Antioxidant Rich Food:
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