Extreme heat is new danger stalking US-bound migrants
In the Mexican desert near the US border, security forces are on alert after a man was found dead from heat stroke on the journey to what he hoped would be a better life in North America.
In the Mexican desert near the US border, security forces are on alert after a man was found dead from heat stroke on the journey to what he hoped would be a better life in North America.
Environment
Jun 22, 2024
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When the nursing home in southern Mexico began to bake in the country's ongoing heat wave, staff cycled their elderly residents through the few cooling options they had.
Environment
Jun 20, 2024
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Searing heat wave temperatures in northern India pushed power demand to a record high, the government said Tuesday, with residents of the capital New Delhi also struggling with water shortages.
Environment
Jun 18, 2024
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Things are about to heat up in much of the U.S. with dangerously hot temperatures in the Midwest and Northeast next week, prompting health officials to urge people to make plans now to stay safe.
Environment
Jun 16, 2024
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Walking your dog daily is an excellent activity for dogs and owners, alike, because it brings mental and physical stimulation to your pet and creates an unbreakable bond between you and your furry friend. However, as summer ...
Veterinary medicine
Jun 6, 2024
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Extreme temperatures across India are having their worst impact in the country's teeming megacities, experts said Thursday, warning that the heat is fast becoming a public health crisis.
Environment
May 30, 2024
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Temperatures in India's capital soared to a national record-high of 52.3 degrees Celsius (126.1 Fahrenheit) on Wednesday, figures from the government's weather bureau showed, as it warned of dangerous heat levels in the sprawling ...
Environment
May 29, 2024
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Volunteers are rushing to hoist food and water up into trees in sweltering southern Mexico, but help came too late for the howler monkeys whose lifeless bodies lay still on the ground.
Ecology
May 22, 2024
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Prions are the abnormal, pathogenic agents that are transmissible and are able to induce abnormal folding of specific normal cellular proteins.
Biochemistry
May 15, 2024
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A Philippine zoo is giving tigers frozen treats made of animal blood and preventing lions from mating during the hottest time of the day as a heat wave scorches the country.
Ecology
Apr 30, 2024
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12
A stroke is the rapidly developing loss of brain function(s) due to disturbance in the blood supply to the brain. This can be due to ischemia (lack of blood supply) caused by thrombosis or embolism or due to a hemorrhage. As a result, the affected area of the brain is unable to function, leading to inability to move one or more limbs on one side of the body, inability to understand or formulate speech, or inability to see one side of the visual field. In the past, stroke was referred to as cerebrovascular accident or CVA, but the term "stroke" is now preferred.[citation needed]
A stroke is a medical emergency and can cause permanent neurological damage, complications, and death. It is the leading cause of adult disability in the United States and Europe. In the UK, it is the second most common cause of death, the first being heart attacks and third being cancer. It is the number two cause of death worldwide and may soon become the leading cause of death worldwide. Risk factors for stroke include advanced age, hypertension (high blood pressure), previous stroke or transient ischemic attack (TIA), diabetes, high cholesterol, cigarette smoking and atrial fibrillation. High blood pressure is the most important modifiable risk factor of stroke.
The traditional definition of stroke, devised by the World Health Organization in the 1970s, is a "neurological deficit of cerebrovascular cause that persists beyond 24 hours or is interrupted by death within 24 hours". This definition was supposed to reflect the reversibility of tissue damage and was devised for the purpose, with the time frame of 24 hours being chosen arbitrarily. The 24-hour limit divides stroke from transient ischemic attack, which is a related syndrome of stroke symptoms that resolve completely within 24 hours. With the availability of treatments that, when given early, can reduce stroke severity, many now prefer alternative concepts, such as brain attack and acute ischemic cerebrovascular syndrome (modeled after heart attack and acute coronary syndrome respectively), that reflect the urgency of stroke symptoms and the need to act swiftly.
A stroke is occasionally treated with thrombolysis ("clot buster"), but usually with supportive care (speech and language therapy, physiotherapy and occupational therapy) in a "stroke unit" and secondary prevention with antiplatelet drugs (aspirin and often dipyridamole), blood pressure control, statins, and in selected patients with carotid endarterectomy and anticoagulation.
This text uses material from Wikipedia, licensed under CC BY-SA