When the sun is out after a long winter, every one loves it. But not the people of Canary Islands. Tourists there are being warned about the "unusually high risk" of UV rays this week. The Ministry of Health for this holiday destination has urged both, residents and visitors to take extra precautions and preventative measures to limit the impact of sun exposure over their body and skin.

The Ministry observed Aemet, Spain's national weather agency for the forecast which showed higher than normal UV or ultraviolet radiation levels in the region. It is in this backdrop that everyone in the region are requested to be extra careful when they are out in the sun. UV levels are set to reach 7, which is a 'high risk' in La Palma, El Hierro, La Gomera and Gran Canaria. Other regions like Tenerife, Fuerteventura and Lanzarote are expected to reach a level 6, which is also classed as 'high risk'.

UV Index Explained

As per the World Health Organization (WHO), a UV index is a measure of the level of UV radiation, which ranges from zero upward. The higher the UVI, the greater potential for damage to skin and eye and the less time it takes for harm to occur, notes WHO.

The range 1 to 2 represents a low risk, 2 to 5 is moderate, 6 to 7 is at high risk, 8 to 10 is at very high and anything over 11 is extremely risky for anyone to stay out.

UV radiation levels fluctuate throughout the day, with the highest values occurring during the four-hour period around solar noon. The reported UV Index (UVI) typically reflects this daily peak. Depending on geographic location and the use of daylight saving time, solar noon falls between 12 p.m. and 2 p.m. In some countries, sun protection advisories are issued when UV levels are expected to reach 3 or higher, as exposure at these levels increases the risk of skin damage, making protective measures essential.

What happens to you when you are out in sun for too long?

While sun bathing is good, being out in the sun when the UVI indicates a high or very high risk, may cause you health concerns. It can lead to sunburn, premature skin aging, incresed risk of skin cancer, eye damage and in severe cases, heat related disease.

Sunburn

It is one of the most common skin injury which happens when there is excess exposure to UV radiation from the sun. This happens when the UV radiation directly damages the DNA skin cells. These damaged cells die and shed, this is why people experience peeling after getting a sunburn.

Dehydration

This is also a common occurrence when your body loses too many fluids or electrolytes. It can also interfere with your normal body functions. You may feel dehydrated, especially when you are out in the sun, but not well hydrated. The most common symptoms are dizziness, fatigue and headache on hot days.

Hyponatremia

This is an electrolyte disorder in which your body experiences low sodium in blood. The symptoms could lead to nausea, confusion and even weakness. There are extreme cases when one may have seizures, slip into coma or die.

Heat Exhaustion

This is one of the most common consequence of being out under the hot sun. Dehydration with prolonged heat exposure can lead to heat exhaustion.

Heatstroke

When you are out under the sun and your body's core temperature cross 104°, heatstroke may occur. This is also known as sunstroke. As per the Centers for Disease Control and Prevention (CDC), it causes more than 600 deaths each year in the United States.

The Cyclospora outbreak that has spread across the US for more than three months has turned deadly, with Michigan—the hardest-hit state—reporting the country's first two deaths linked to the diarrhea-causing parasite.

According to the Michigan Department of Health and Human Services (MDHHS), both individuals had significant underlying health conditions.

"Two deaths have been identified as part of the cyclosporiasis outbreak affecting Michigan. According to medical records, both individuals had significant underlying health conditions that may have been impacted by cyclosporiasis and dehydration," the department said.

Health officials stressed that deaths from cyclosporiasis are rare, as the infection is generally not life-threatening. Michigan has reported 11,234 cases, including 193 hospitalizations.

The US Centers for Disease Control and Prevention (CDC) also confirmed the two outbreak-related deaths in Michigan. As of its July 28 update, the agency has recorded 6,707 laboratory-confirmed cases across 45 states since May 1, along with more than 11,500 suspected cases—primarily in Michigan and Ohio—that are yet to be laboratory confirmed. The outbreak has resulted in 423 hospitalizations.

FDA Links Outbreak to Recalled Iceberg Lettuce

The US Food and Drug Administration (FDA) has linked part of the outbreak to iceberg lettuce supplied by Taylor Farms de Mexico. The company voluntarily recalled affected products on July 17 and said it will no longer source iceberg lettuce from central Mexico for the rest of the growing season.

The recalled lettuce has been linked to illnesses in Indiana, Kentucky, Michigan, Ohio, and West Virginia. Separately, the CDC, FDA, and state health officials are investigating another Cyclospora outbreak linked to iceberg lettuce in nine states, which has sickened at least 1,947 people and hospitalized 98.

Officials are also investigating whether parsley and cilantro may be linked to the outbreak.

What Is Cyclospora?

Cyclospora is a parasite that infects the intestines and is usually spread through contaminated food or water.

Symptoms include:

• Frequent watery diarrhea
• Abdominal cramps
• Bloating
• Nausea
• Excessive gas
• Low-grade fever
• Loss of appetite
• Weight loss

What Should You Do If You Think You Have Cyclosporiasis?

Most infections are mild and resolve without treatment. However, the illness can be prolonged or severe in people with weakened immune systems, who may require antibiotic treatment.

If you develop symptoms:

• See a healthcare provider and request a stool test to confirm a Cyclospora infection.
• Drink plenty of fluids to prevent dehydration caused by diarrhea.
• Because diarrhea can have many causes, getting the right diagnosis is important, as cyclosporiasis is treatable with a specific antibiotic.
• Seek immediate medical attention if you have severe diarrhea, feel dizzy when standing, or have a rapid heartbeat, as these may be signs of serious dehydration.

How Is It Diagnosed and Treated?

Doctors diagnose cyclosporiasis with a stool test that detects the Cyclospora parasite shed in stool.

Although some mild infections may resolve on their own, confirmed cases should be treated with antibiotics. The recommended treatment is the antibiotic trimethoprim/sulfamethoxazole (TMP-SMX).

Your doctor may also recommend:

• Medicines to relieve diarrhea, if appropriate.
• Oral or intravenous fluids to prevent or treat dehydration.

How To Reduce Your Risk

• Check whether recently purchased iceberg lettuce was sourced from Taylor Farms de Mexico, Guanajuato.

• The recall includes:

1. 12-ounce and 24-ounce Iceberg Salad with best-by dates July 18–August 3
2. 8-ounce and 16-ounce Shredded Lettuce with best-by dates July 18–August 3

• Discard or return any recalled products. An additional 33 recalled products were supplied to restaurants and are unlikely to be in home refrigerators.
• No other lettuce varieties, including romaine and butter lettuce, have been linked to the outbreak.
• Avoid eating recalled shredded iceberg lettuce.
• Wash all fresh fruits and vegetables thoroughly under running water, even if labeled pre-washed.
• Choose whole heads of lettuce over bagged greens when possible. Remove the outer leaves and wash the inner leaves thoroughly.
• Cook produce whenever possible, as heat is the most effective way to kill Cyclospora.
• Follow safe food-handling practices and stay updated on food recalls.

An 86-year-old sheep farmer from Wales recently shared how he unknowingly lived with a rare parasitic disease for years before experiencing what he described as "the worst pain" of his life.

The rare case has highlighted a little-known infection that experts say can remain hidden inside the body for decades.

Meredydd Jones, from Trecastle in Powys, was diagnosed with hydatid disease, a parasitic infection caused by the tapeworm Echinococcus granulosus.

He said that slow-growing cysts had been developing in his lungs for years before he was rushed to the hospital after he complained of severe pain in 2016.

"I hadn't been able to control the pain, and it was more intense than anything I had before," Jones recalled. He later underwent two surgeries in 2018 and 2019 to remove cysts from both lungs, while another cyst in his liver continues to be monitored.

The case comes as Public Health Wales raise concerns that the disease, though uncommon, remains a significant public health issue in sheep-farming regions.

What Is Hydatid Disease?

Hydatid disease, also known as cystic echinococcosis, is caused by the larval stage of the Echinococcus tapeworm.

The parasite typically circulates between dogs and livestock such as sheep and cattle. Humans become accidental hosts after ingesting microscopic tapeworm eggs, usually through contact with infected dogs or contaminated food, water, or soil.

Unlike many infections, hydatid disease develops very slowly and gradually. The parasite forms fluid-filled cysts that most commonly affect the liver and lungs, although they can also develop in the brain, bones, or other organs.

Also read: Milestone In Kala-Azar Treatment: WHO Updates Treatment Guidelines, Recommends Shorter & Safer Regimens

Why Symptoms Take Years To Appear?

According to Dr Chris Williams, consultant epidemiologist at Public Health Wales, the disease can remain hidden for an unusually long time.

"What happens is normally the tapeworm transmits between farm animals like sheep and cows to dogs, and the dogs excrete eggs," he explained. "Unfortunately, if humans ingest the eggs, they can then form cysts within humans."

He added that symptoms may not appear for 10 to 20 years, which is why infections are often discovered only after cysts become large enough to cause complications. Depending on where the cysts develop, people may experience:

• Persistent abdominal pain or swelling
• Chest pain, chronic cough or shortness of breath
• Unexplained lumps
• Fever if cysts become infected
• Severe allergic reactions if a cyst ruptures

Public Health Wales says hydatid disease is uncommon but can have serious health consequences if left untreated.

Researchers at Aberystwyth University are now studying dogs, livestock and farming practices to better understand whether the parasite is emerging again in parts of Wales.

The project includes analysing dog faecal samples and tracking farm dogs to understand how the parasite may spread between farms. Experts say prevention remains the most effective strategy.

Regular deworming of dogs, proper disposal of livestock carcasses, avoiding feeding dogs raw offal, and practising good hand hygiene after handling animals can significantly reduce the risk of infection.

Tiny plastic particles may be making their way into one of the body's most protected organs, the brain, according to new research. This has raised concerns about the long-term health effects of microplastic exposure, particularly on brain health.

In a study published in Nature Medicine, researchers found that microplastics and nanoplastics were present in brain tissue, with significantly higher concentrations than in liver and kidneys.

One of the most important findings is that these particles can cross the blood-brain barrier, a protective shield that normally blocks harmful substances from entering the brain.

The researchers analysed brain tissue samples collected over several years and observed that they contained seven to 30 times more plastic particles than other organs.

They also found an increase in brain plastic concentrations in more recent samples, reflecting the growing burden of plastic pollution worldwide in the last few years.

"Our data suggest a trend of increasing concentrations of micro- and nanoplastics in the brain," the study authors wrote. They stressed that the findings do not prove these particles cause disease.

Could Microplastic Exposure Increase Dementia Risk?

The researchers also reported higher concentrations of plastic particles in brain tissue from people diagnosed with dementia.

However, they cautioned that the study only identified an association and cannot determine whether microplastics contribute to dementia or whether brains diseased with dementia simply accumulate more particles.

Scientists are still trying to understand how these particles do harm once they reach the brain. Proposed theories include triggering inflammation, disrupting communication between nerve cells, or affecting blood flow, but none have yet been confirmed in humans.

Also read: Risks Of Plastic Pollution: Study Finds Microplastics In Heart Arteries Can Cause Severe Heart Attacks

How Can Microplastics Get Into The Brain?

Since nanoplastics are extremely small, researchers believe some may pass through the blood-brain barrier and become trapped in brain tissue.

The study found polyethylene, commonly used in food packaging and plastic bottles, was the most abundant type detected in the brain tissue.

Scientists emphasise that it is too early to conclude that microplastics directly damage the human brain.

"The findings are concerning, but they should not be interpreted as proof that microplastics cause neurological disease," the researchers emphasised. More studies are needed to determine whether the particles themselves are harmful or simply markers of environmental exposure.

Also read: Dementia Progression Observed To Slow Down When You Do This Exercise 3 Times A Week

How To Reduce Exposure To Microplastics?

While eliminating exposure entirely is nearly impossible, experts recommend practical steps that may lower intake:

• Avoid heating food in plastic containers.
• Choose glass or stainless steel for food and water storage when possible.
• Reduce consumption of heavily packaged and ultra-processed foods.
• Improve indoor ventilation and reduce household dust, another potential source of airborne microplastics.

The study adds to mounting evidence that microplastics are no longer just an environmental issue. They are increasingly being detected throughout the human body, including the blood, lungs, placenta and now the brain.