Posts tagged with "Glaucoma"

Have a ‘cuppa’: 74% fewer tea drinkers develop glaucoma

January 9, 2020

According to the Glaucoma Research Foundation, more than 3 million Americans have glaucoma—the second leading cause of blindness worldwide—but in England, only 480,000 suffer from the same condition, the National Eye Research Centre estimates.

Could the Brits’ affection for a cuppa tea, rather than a mug of coffee, be protecting their eyesight?

According to findings of a study published in the British Journal of Opthalmology, drinking at least one cup of hot tea daily can reduce your risk of developing glaucoma.

The study, which was conducted by scientists from the University of California, involved volunteers who consumed hot tea at least once per day. Findings showed that regular tea drinkers enjoy an incredible health benefit: They were fully 74 percent less likely to develop a condition called glaucoma, according to a report by the UK’s National Health Service. .

Strangely enough, other beverages such as coffee, iced tea, and soda didn’t improve the eye health of the participants.

A person with glaucoma experiences interocular pressure, or a buildup of fluid pressure in their eye. This pressure can cause damage to the optic nerve.

For the study, researchers analyzed information gleaned from the 2005-2006 National Health and Nutrition Examination Survey (NHANES), an annual survey done in the United States. The NHANES aims to collate data and tests to provide an accurate picture of the health and nutritional status of adults and children.

The researchers reported that out of the 10,000 people involved in the annual survey, about 1,678 had full eye test results. Findings showed that 84 of the adult participants have developed glaucoma.

Meanwhile, almost half of the participants reported drinking coffee often. Fewer than 10% drank hot tea daily.

Tea, particularly green tea, is rich in antioxidants that have powerful benefits for the human body. Among the benefits of consuming green tea are the following:

  • It contains bioactive compounds—Green tea contains polyphenols such as flavonoids and catechins, which are powerful antioxidants. These nutrients aid in reducing the number of harmful free radicals in our bodies, and also protect our cells and molecules from damage.
  • It can improve brain function—It contains just the right amount of caffeine to keep you awake without making you feel jittery. Green tea also contains the amino acid L-theanine, which can increase dopamine and the production of alpha waves in the brain. Alpha waves indicate calmness and relaxation.
  • It increases fat burning and physical performance—because it ramps up metabolism and short-term fat burning.
  • It contains antioxidants that may reduce the risk of certain cancers—Green tea contains potent antioxidants that are known to combat developing cancer cells; particularly of the breast, prostate, and colorectal varieties.
  • It may lower the risk of Alzheimer’s and Parkinson’s disease in old age — According to animal studies, the catechin compounds in green tea can protect neurons and decrease the likelihood of developing these conditionsl
  • It can kill bacteria in your mouth and improve dental health—The polyphenols in green tea, most notably catechins, can kill harmful bacteria in the mouth. Green tea may also reduce bad breath.
  • It may lower the risk of getting Type-2 diabetes– Green tea has been known to reduce blood sugar levels,a problem for those living with diabetes.

So substitute a cuppa tea for your usual morning coffee and enjoy the results.

Research contact: @NHSEnglandLDN

Researchers: Ties are a ‘socially desirable’ form of strangulation

July 18, 2018

Don’t tie that knot! The “business casual” dress code recently adopted by many firms actually has proven to be healthier for male workers. Indeed, findings of a study conducted at Germany’s Kiel University Hospital and released on June 30 show that wearing a tie actually can increase intraocular eye pressure—and decrease blood flow to the brain.

The researchers describe wearing a tie as a “socially desirable [form of] strangulation.”

To judge the ramifications of wearing a cravat, the study—due to be published in the journal, Neuroradiology, in August and covered by Business Insider on July 16—involved asking 15 men to wear ties, and 15 men to serve as a “control group” and go without them. The researchers then scanned the participants using magnetic resonance imaging (MRI) to measure cerebral blood flow and jugular venous flow.

What they discovered was that the brains of the tie-wearers were, on average, receiving 7.5% less “cerebral blood flow” than the brains of those subjects within the control group.The scientists attributed the lower blood flow to the narrowing of the carotid arteries, which carry blood away from the heart, under the pressure of the tie.

While a 7.5% reduction in blood flow may not appear substantial enough to cause noticeable health problems, people who already suffer with other health issues should be cautious: Whether you have high blood pressure, are elderly, or smoke cigarettes, you could end up suffering from headaches, dizziness, and nausea if you wear a tie for too long.

The restricted blood flow also can cause a backup of blood along the system to the eye—thus, raising eye pressure. Raised intraocular eye pressure is considered a risk factor for glaucoma and cataracts, and could possibly increase the risk of worsening existing glaucoma, according to the study.

What’s more, wearing a tie in a doctor’s office, hospital, or clinic could put others at potentially lethal risk, Businesss Insider reports. A study conducted by Texas A&M Health Science Center College of Medicine showed that among 42 male surgical clinicians, nearly half had infection-causing pathogens on their ties.

“Researchers Eyal Zimlichman, Daniel Henderson, and Orly Tamir told Business Insider, “We estimated there are approximately 440,000 of these infections annually among U.S. adult in-patients and that their annual costs are $9.8 billion.”

That’s bad news for haberdashers, but potentially breakthrough information for the healthcare industry.

Research contact: r.lueddecke1992@googlemail.com