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 US Food and Drug Administration has recalled over three million eye drops in the country over safety concerns.

The 3,111,072 products were manufactured by California-based K C Pharmaceuticals and were sold under names such as “Dry Eye Relief Eye Drops,” “Sterile Eye Drops,” and “Artificial Tears Sterile Lubricant Eye Drops,” according to the FDA notice.

K C Pharmaceuticals made the voluntary recall of the eye drops in early March.

The eight types of eye drop products were sold at major retailers, including CVS, Walgreens, and Rite Aid. They have expiration dates ranging from April to October.

Eye Drops: Why Are These Recalled? What Did The US FDA Say

The FDA, in its Enforcement Reports, stated that the products recalled “lack of assurance of sterility.”

While so far, there are no reports of injuries associated with the eye drops, the FDA notice classified the action as a “Class II recall.”

Class II recalls apply to products that can cause “temporary or medically reversible” health problems.

As per the FDA, "the probability of a serious health issue is remote," over these products, and that is why the recall is categorized as a Class II, USA TODAY reported

"Patients and consumers can continue using the medicine unless otherwise directed by the recalling company or FDA," the regulator said in a statement to the publication.

Also read: Can 'Eye Strain' Lead To Brain Cancer? Experts Explain

Which Eye Drops Have Been Recalled?

NBC News reported that the recalled products include:

1. Sterile Eye Drops AC (tetrahydrozoline HCl 0.05%, zinc sulfate 0.25%), 0.5 fl oz (15 mL) bottles
2. EYE DROPS Advanced Relief, (dextran 70 0.1%, polyethylene glycol 400 1%, and tetrahydrozoline HCl 0.05%), 0.5 fl oz (15 mL) bottles
3. Dry Eye Relief Eye Drops (glycerin 0.2%, hypromellose 0.2%, and polyethylene glycol 400 1%) 0.5 fl oz (15 mL) bottles
4. Ultra Lubricating Eye Drops (polyethylene 400 0.4%, propylene glycol 0.3%), Sterile, 0.5 fl oz (15mL) bottles
5. Sterile Eye Drops Original Formula (tetrahydrozoline HCl 0.05%), 0.5 fl oz (15mL) bottles.
6. Sterile Eye Drops Redness Lubricant (glycerin 0.25% and naphazoline HCl 0.012%), 0.5 fl oz (15 mL) bottles
7. Sterile Eye Drops Soothing Tears (polyethylene glycol 400 0.4% and propylene glycol 0.3%), 0.5 OZ 0.5 fl oz (15 mL) bottles.
8. Artificial Tears Sterile Lubricant Eye Drops (polyvinyl alcohol 0.5%, povidone 0.6%), 0.5 fl oz (15 mL) bottles.

Here’s What You Can Do Instead?

Also read: Struggling With Dry Eyes? Study Reveals Surprising Treatment- Tips To Prevent This Disease

The key to ensuring that your eyes are protected from environmental factors like the sun, dust, and dirt, especially for those who work outdoors or spend long hours on screen, is investing in good sunglasses with ultraviolet protection.

"For those who are using computers a lot, you need to blink your eyes constantly, take breaks in between, and drink a lot of water. Dehydration is also a contributing factor to dry eye," Dr Anita Sethi, who is Principal Director and HOD Ophthalmology, Max Multi Specialty Centre at Panchsheel Park.

She also recommends using zero-number protective glasses and computer glasses that can decrease strain and dry eye.

While advising people to stay away from natural remedies like turmeric or ginger put inside the eye, Dr Sethi urged people to consume more “foods rich in vitamin E, antioxidants” to maintain eye health.

“Colored vegetables and fruits, and even maintaining thyroid and vitamin D levels, because these also contribute to dry eye,” the ophthalmologist said.

Smokers turn to vaping thinking that it is cooler and more convenient. Little do they realise that this seemingly convenient act could cause long-term damage, most of it irreversible. Scientists now fear that vaping could be linked to not one, but two forms of cancer. E-cigarettes can trigger lung and mouth cancer, and this is a consequence of the DNA-damaging chemicals found in vapes. Researchers at the University of New South Wales in Sydney came to this conclusion after reviewing studies on mice that developed lung tumours after being exposed to aerosol. Reports also suggest that heavy smokers are more prone to mouth cancer.

Why are vaping pens linked to cancer?

Vapour from pens has a relatively better fragrance compared to conventional cigarettes, as these pens are flavoured. However, researchers say that these pens contain chemicals that can cause cancer, damage DNA, and lead to tissue inflammation. Researchers also say that e-cigarettes contain nicotine, which is likely to trigger lung and mouth cancer. However, the extent of this effect in humans is still unknown.

Read more: Parents Who Smoke May Be Passing Severe Lung Disease Risk To Their Children

Lead researchers of the study said that they would only be able to determine the precise risk once long-term studies are available. Contrary to popular belief, while many believe that vaping is far safer than smoking, the study’s findings act as a warning for all those who use a vape but have not smoked a cigarette in their life. Experts at the University of Sydney noted that vaping is a safer alternative to smoking for smokers. However, the research has drawn criticism for being “problematic” and “misleading”.

Experts at University College London said that no one would argue that e-cigarettes are completely risk-free. Rather, they said, vapes should be used as a harm-reduction tool to help smokers quit the habit, thereby reducing their risk of chronic and acute health problems, such as heart disease. The review, however, does not give a free pass to use e-cigarettes. It issues a warning against the use of vapes, citing risks of lung and oral cancer. At a time when vape use has increased suddenly, overtaking the popularity of smoking, research is necessary to discourage people, especially youngsters, from adopting the habit in the first place.

Cancer, a rare occurrence? Unfortunately, not anymore. According to recent findings from an analysis published in The Lancet, cancer is one of the top 10 causes of death among Indian children. This is an alarming statistic, signalling an under-recognised public health problem. Data in the Global Burden of Disease Study 2023 noted that even as infectious diseases decline, noncommunicable diseases like cancer are emerging as a serious threat to child survival and well-being. In India, this epidemiological shift is particularly concerning in the context of childhood cancers. Despite being rare, they are highly treatable when detected in the early stages—yet most cases are diagnosed late.

As per the Indian Council of Medical Research’s National Centre for Disease Informatics and Research (ICMR-NCDIR), childhood cancers accounted for 3–5 per cent of cancer cases reported in India in 2022. The country sees an estimated 50,000 to 60,000 cases every year among children aged 0–14 years. This makes it one of the highest burdens globally. In 2023, 377,000 cases of childhood cancer were reported globally, along with 144,000 deaths, according to The Lancet research paper.

Read more: 3 Children In Every 4 Minutes Are Diagnosed With Cancer, That's What Makes Awareness Important Says Doctor

Hidden cancer burden in India

When it comes to childhood cancers in India, leukaemia, or blood cancers, are the most common, followed by lymphomas and tumours of the central nervous system. Collectively, these categories comprise most cases of childhood cancers in the country. The statistics vary across regions, with Delhi reporting the highest number of cases due to better diagnostic facilities. However, experts believe that the actual burden is likely to be much higher. Incomplete cancer registration and limited access to proper diagnostic facilities in underserved and rural areas are to blame for delayed diagnosis.

Why is childhood cancer detected late in India?

Experts say that cancer deaths in India can largely be attributed to delayed diagnosis. Early symptoms of cancer in children include fatigue, fever, unexplained weight loss, and swelling in certain body parts. These symptoms are often overlooked, leading to delays at multiple levels. According to the ICMR 2022 factsheet, a significant proportion of children reach hospitals only at advanced stages of the disease. By then, treatment becomes more complex, more expensive, and less likely to succeed.

Access to cancer care for children

Access to cancer care for children is uneven in India. Paediatric oncology services are largely limited to hospitals in tier-one cities, forcing families from rural areas and smaller towns to travel in order to access proper treatment. This imbalance results in delayed care, especially for economically vulnerable families. Financial limitations are another barrier in the process—even if treatment costs are subsidised, expenses such as travel, accommodation, and loss of income can be overwhelming.

Read more: 41 million children aged 5-19 living with high BMI in India: Study

Irregular survival patterns

Globally, survival rates for childhood cancers exceed 80 per cent in high-income countries. In India, outcomes are uneven. The ICMR 2022 factsheet noted that survival depends on the stage of diagnosis, type of cancer, and where the child is treated. Hospitals in India are reporting improving survival rates for certain forms of cancer, such as acute lymphoblastic leukaemia. The ICMR factsheet also highlights the need for a dedicated approach to paediatric cancer care, including better infrastructure, trained doctors, and stronger referral systems.