Heart disease is often linked to high cholesterol, obesity, or lack of exercise. However, there is mounting evidence that suggests that mental health plays a crucial role in cardiovascular well-being. Stress, anxiety, and depression can silently strain the heart, increasing the risk of serious complications.

A recent study, published in Nature Human Behaviour, showed that loneliness has a significant impact on proteins present in a person's blood. For the study, researchers used data from more than 42,000 participants to explore whether the 9.3% who reported social isolation and 6.4% who reported loneliness had different levels of proteins in their blood compared with those who did not. The researchers then studied data that tracked the health of participants over an average 14-year period.

"We found around 90% of these proteins are linked to the risk of mortality," Dr Chun Shen, Fudan University in China, who is also the lead researcher said. "In addition, about 50% of the proteins were linked to cardiovascular disease, type 2 diabetes and stroke," he added.

Dr Shrey Kumar Srivastav, senior consultant at Sharda Hospital, said that subtle symptoms of heart disease, such as fatigue, shortness of breath, swelling in the lower legs, dizziness, and jaw pain, are often overlooked or attributed to stress and ageing. "Women, in particular, may experience atypical signs like extreme fatigue, indigestion, or upper abdominal pain instead of classic chest pain, leading to delayed diagnosis," he added.

Can Mental Health Issues Trigger Heart Diseases?

Chronic stress can trigger harmful cardiovascular effects, including elevated blood pressure, increased heart rate, and inflammation—key contributors to heart disease. Anxiety and depression further impact heart health by disrupting sleep patterns, raising stress hormone levels, and encouraging unhealthy habits like poor diet and inactivity.

Mental health issues like depression and anxiety have a profound impact on the heart. They don’t just affect emotions but can increase inflammation and put extra strain on the cardiovascular system, warns Dr Srivastav.

Certain risk factors, such as obesity and diabetes, disproportionately affect women, making them more vulnerable to heart failure with preserved ejection fraction (HFpEF). However, due to gender-specific symptom variations, heart disease in women often goes undiagnosed for longer.

Obesity is more prevalent in women than men and is a major risk factor for heart failure. Diabetes, too, has a greater impact on women’s heart health, yet diagnosis and treatment delays are common. Addressing this gap requires increasing awareness, training healthcare providers, and promoting early diagnostic tools,” explains Dr Srivastav.

How Can You Protect Your Heart?

A simple yet effective way to support heart health is by committing to a brisk 30-minute walk daily. Walking not only helps regulate blood pressure and manage weight but also improves circulation and reduces stress.

"Regular physical activity, paired with a heart-healthy diet rich in fruits, vegetables, whole grains, and lean proteins, significantly lowers cardiovascular risks," advises Dr Srivastav.

Heart disease can often go undetected until a major event occurs, making routine screenings essential.

- For women: Begin screenings around age 30 and continue with regular checkups.

- For men: Start screenings at age 35.

Health screenings, including blood pressure checks, cholesterol tests, and electrocardiograms (ECGs), are critical for early detection of silent heart conditions.

Uganda has officially ended the Ebola outbreak after completing the mandatory 42-day monitoring period with no new infections, even as neighboring Democratic Republic of the Congo (DRC) continues to battle its worst outbreak of the deadly disease in years.

Ugandan Health Minister Chris Baryomunsi announced the "successful completion of the mandatory 42-day monitoring period," which began after the last locally transmitted patient was discharged on June 16.

"Throughout this period, the Ministry of Health maintained intensive surveillance nationwide, and no new Ebola cases have been detected," Baryomunsi said.

Uganda Ends Outbreak After Swift Response

Earlier this month, Dr. Diana Atwine, Permanent Secretary at Uganda's Ministry of Health, said the outbreak had been successfully contained through rapid surveillance, prompt treatment, contact tracing, and close cross-border coordination.

Uganda recorded 20 confirmed Ebola cases during the outbreak. Of these, 18 patients recovered and were discharged, while two died.

Most of the infections were linked to travelers arriving from the DRC, with only a small number resulting from local transmission.

Despite the declaration, Baryomunsi urged the public to remain "vigilant" and continue following public health measures to prevent future outbreaks.

Congo Outbreak Nears Scale of Historic Epidemic

Also read: Michigan Cyclosporiasis Outbreak Nears 10,000 Cases: Is Your Lettuce Safe?

While Uganda celebrates its success, the Ebola crisis in the DRC continues to worsen. According to the Congolese Ministry of Health, the country has reported at least 3,262 cases and 1,437 deaths, bringing the outbreak close to the scale of the country's devastating 2018-2020 epidemic.

The World Health Organization (WHO) has described it as the fastest-spreading Ebola outbreak ever recorded, warning that the actual number of infections could be two to four times higher than officially reported.

UN Warns Virus Is Spreading "Like Wildfire"

United Nations humanitarian officials have described the outbreak as one of the world's most severe public health emergencies.

"The outbreak is spreading like wildfire," UN officials warned, citing armed conflict, mass displacement, and repeated attacks on healthcare facilities as major obstacles to controlling the virus.

The WHO has also warned that many newly reported infections cannot be linked to known transmission chains, suggesting the virus is spreading undetected within communities.

Contact tracing remains inadequate, while insecurity, misinformation, and community mistrust continue to undermine response efforts.

Health workers have also staged strikes in some areas over unpaid wages, further disrupting patient care and containment operations.

Attacks on health facilities, shortages of medical supplies, delayed laboratory testing, and public distrust are other factors delaying efforts to isolate patients, trace contacts, and break chains of transmission.

First Volunteer Receives Experimental Bundibugyo Vaccine

Amid the worsening outbreak, researchers have reached an important milestone in Ebola vaccine development.

The first volunteer has received an experimental vaccine targeting the Bundibugyo strain of Ebola, marking the world's first Phase I clinical trial for this virus, according to the University of Oxford.

The vaccine, ChAdOx1 BDBV, developed in collaboration with Serum Institute of India (SII), is designed specifically to protect against the Bundibugyo strain of Ebola.

It uses the same viral vector platform that powered the Oxford-AstraZeneca COVID-19 vaccine.

The vaccine uses a genetically modified chimpanzee adenovirus (ChAdOx1)—a harmless virus that normally causes the common cold in chimpanzees—as a delivery vehicle.

"We welcome the start of the phase 1 clinical trial of an investigational vaccine against Ebola Bundibugyo virus disease—an important step to assess the safety and immune responses generated by the vaccine," said WHO Director-General Tedros Adhanom Ghebreyesus on X.

A simple blood test that can accurately identify tuberculosis (TB) across people with different levels of exposure help earlier diagnosis and speedy treatment,, according to new research presented at the Association for Diagnostics & Laboratory Medicine (ADLM) 2026 Annual Scientific Meeting.

The study discovered that the experimental blood test can distinguish individuals with active tuberculosis from those who are healthy, regardless of whether they have had prior exposure to the disease.

Researchers say the findings could help address one of the biggest hurdles in TB control: identifying and tracing infectious patients before they unknowingly spread the disease.

"If validated in larger clinical studies, this test has the potential to transform tuberculosis screening by enabling earlier and more accurate detection of active disease," the study authors said. They observed that such a tool can significantly help control transmission, particularly in nations where TB still remains a public health issue.

Do We Need A Better TB Test?

Although TB is preventable and curable, delayed diagnosis continues to fuel transmission and contributes to deaths that are preventable.

Current diagnostic methods have important limitations. Sputum-based tests can be difficult to perform, especially in children and people with TB outside the lungs.

Meanwhile, commonly used blood tests can indicate exposure to the bacteria but cannot reliably distinguish between active disease and latent infection, meaning additional investigations are needed.

Also read: World Tuberculosis Day: A 2nd Surge In Tuberculosis Cases Again Seen In The US

About The New Blood Test For TB

According to the researchers, the new test examines the immune signatures in a blood sample to identify active tuberculosis, rather than merely detecting previous exposure.

In the study, the test successfully differentiated active TB cases from healthy individuals with varying degrees of TB exposure, suggesting it could be used as an effective screening tool across diverse populations.

The investigators emphasized that larger, multi-center studies are still needed before the test can become part of routine clinical practice. However, the early results point toward a faster and less invasive way of diagnosis.

Also read: Over 8 Million People Diagnosed With TB Last Month: Know Early Signs

Early Diagnosis Is Key

Early diagnosis is one of the most factors for controlling tuberculosis. Patients with untreated active TB can infect many others. A simple blood test that identifies active disease quickly could allow doctors to start treatment sooner, reduce transmission, and improve patient's health.

This could also be useful where resources are particularly limited. Places where collecting sputum samples is challenging and access to a sterile laboratory testing is limited can benefit from this blood test.

As blood samples are easier to obtain in many clinical situations, the test could help screen vulnerable populations, including children and people with extrapulmonary TB.

Public health experts have repeatedly stressed that improved diagnostics are essential for achieving the World Health Organization's End TB Strategy.

You May Carry TB And Not Know

Treating latent TB is like stopping the virus, while it's still small and easy to treat. It's much easier to kill the dormant germs than to fighting the active disease. You could be carrying the disease and not realise. This increases the risk of transmission.

A 2017 study published in the Viruses Journal explained that we all have slightly different versions of our genes (polymorphisms) and these differences can affect how our bodies react to any virus. Some gene variations might make your immune system stronger against a specific virus, while others might make you more vulnerable.

Michigan, the hardest-hit state in the ongoing nationwide cyclosporiasis outbreak, has reported nearly 10,000 cases of the intestinal illness, which can cause severe, often "explosive," diarrhea, according to state health officials.

So far, the state has recorded 160 hospitalizations, with no deaths reported.

According to the US Centers for Disease Control and Prevention (CDC), 6,707 laboratory-confirmed domestic cases of cyclosporiasis have been reported since May 1.

The agency also said it is tracking more than 11,500 additional suspected cases that have not yet been laboratory confirmed or remain under investigation. Many of these reports have come from Michigan and Ohio.

What Did the FDA Probe Reveal?

A US Food and Drug Administration (FDA) investigation has linked part of the outbreak to iceberg lettuce served at Taco Bell restaurants and supplied through Taylor Farms operations in central Mexico.

The FDA is continuing to investigate other potential sources of contamination. Taco Bell has stopped serving the affected lettuce, while Taylor Farms has voluntarily recalled dozens of iceberg lettuce products distributed across 27 states. The company also said it will no longer source iceberg lettuce from central Mexico for the remainder of the growing season.

The recalled lettuce has been linked to illnesses in five states—Indiana, Kentucky, Michigan, Ohio, and West Virginia. However, investigators have not yet determined how many illnesses are directly connected to the recalled products.

Separately, the FDA is investigating another Cyclospora outbreak that is unrelated to the lettuce-linked cases. The second outbreak has sickened 72 people and has been traced to an unidentified food item. The agency said the source has "not yet been identified."

Could It Be More Than Lettuce?

Former CDC Director Robert Redfield told media that the US government may consider ending produce sourcing from central Mexico. He also suggested the outbreak may involve more than lettuce.

Officials are also investigating whether parsley and cilantro, in addition to lettuce, could be associated with the outbreak. The investigation is ongoing.

How to Check If Your Lettuce Is Safe

The FDA advises consumers to check salad and lettuce products purchased during the past week to determine whether they were sourced from Taylor Farms de Mexico in Guanajuato, Mexico.

The recalled retail products include:

• 12-ounce and 24-ounce Iceberg Salad with best-by dates between July 18 and Aug. 3
• 8-ounce and 16-ounce Shredded Lettuce with best-by dates between July 18 and Aug. 3

Consumers who purchased these products should throw them away or return them to the store where they were bought.

An additional 33 recalled lettuce products were distributed to restaurants and other food-service businesses and are unlikely to be found in home refrigerators. A complete list of recalled products is available on the FDA website.

At this time, no other lettuce varieties—including romaine or butter lettuce—have been linked to the outbreak, even if distributed by Taylor Farms. The company told Newsweek that, aside from the recalled iceberg lettuce, "no other Taylor Fresh Foods products across the country are impacted."

How To Reduce Your Risk

Health officials recommend:

• Avoid eating shredded iceberg lettuce linked to the recall.
• Wash all fresh fruits and vegetables thoroughly under clean running water, even if they are labeled pre-washed.
• Follow safe food-handling practices.
• Stay updated on food recalls and outbreak alerts.
• Contact a healthcare provider if symptoms develop.