Friday January 18, 2019

Study Shows That 3 Cups of Coffee or Tea Daily May Cut Risk of Stroke

Are you an ardent coffee or tea lover, but advised to avoid caffeinated beverages due to your heart conditions Cheer up, drinking upto three cups of coffee or tea a day is safe as well as reduce irregular heartbeat and stroke risk, a study says.

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Are you an ardent coffee or tea lover, but advised to avoid caffeinated beverages due to your heart conditions Cheer up, drinking upto three cups of coffee or tea a day is safe as well as reduce irregular heartbeat and stroke risk, a study says.

A single cup of coffee contains about 95 mg of caffeine. It acts as a stimulant to the central nervous system and works to block the effects of adenosine — a chemical that causes atrial fibrillation (AFib).

AFib is the most common heart rhythm disorder, causes the heart to beat rapidly and skip beats, and if left untreated, can cause strokes.

The results suggest that caffeine intake of up to 300 mg per day may be safe for arrhythmic patients.

Jasmine Green tea and its benefits
Jasmine Green tea. Pixabay

“There is a public perception, often based on anecdotal experience, that caffeine is a common acute trigger for heart rhythm problems,” said lead author Peter Kistler, Director at Melbourne’s Alfred Hospital.

But, “caffeinated beverages such as coffee and tea have long-term anti-arrhythmic properties mediated by antioxidant effects and antagonism of adenosine,” he added.

For the review, published in the journal JACC: Clinical Electrophysiology, the team analysed multiple population-based studies.

A meta-analysis of 228,465 participants showed that AFib frequency decreasing by 6 per cent in regular coffee drinkers, and an analysis of 115,993 patients showed a 13 per cent reduced risk.

Nestle Pays Starbucks $7.1bn to Sell its Coffee.
Nestle Paid Starbucks $7.1bn to Sell its Coffee. Pixabay

Another study of 103 post-heart attack patients who received an average of 353 mg of caffeine a day showed improvement in heart rate and no significant arrhythmias — or abnormal heart rhythms, that cause the heart to beat too fast, slow or unevenly.

However, in two studies, where patients drank at least 10 cups and nine cups of coffee per day, showed an increased risk for ventricular arrhythmias (VAs) — a condition in which the lower chambers of the heart (ventricles) beat very quickly.

Also Read: 5 Health Benefits of Drinking Tea

On the other hand, patients with pre-existing heart conditions who consumed two or more energy drinks — that contains concentrated caffeine — per day reported palpitations within 24 hours. (IANS)

Next Story

Habitual Tea Drinking May Lead to Higher Bone Density

Those who drink green tea or have drunk tea for over 30 years have a 20 to 30 percent lower risk in hip bone fracture

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Habitual tea drinking can lower risk of fracture. Pixabay

Habitual tea drinking can lead to higher bone density, particularly for women, and lower the risk of bone fractures, according to a prospective study of 450,000 adults by Chinese researchers.

Although little is known about the cause of the association, the research conducted by the School of Public Health with Peking University found daily consumers of green tea and those who had drunk tea for more than 30 years have a lower rate of fractures according to their hospitalization records, reports Xinhua news agency.

The paper on the research was published in the international journals Nutrients and Osteoporosis International.

Li Liming, a professor who led the research, said the study included 453,625 people randomly selected from the China Kadoorie Biobank and documented their records on hospitalized fractures.

Iced Tea. Pixabay

Based on their self-reported tea consumption, the researchers found that compared with those who do not drink tea, daily tea consumers have a 12 percent lower risk of fracture.

Those who drink green tea or have drunk tea for over 30 years have a 20 to 30 percent lower risk in hip bone fracture.

Also Read- Huawei Unveils its Flagship Mate 20 Pro in India

Li said bone density had become an important subject of public health. Previous researches also suggested a certain association between habitual tea drinking and higher bone density among menopausal women.

He said the prospective study still needs a more substantial sample analysis for more accurate results linking the association between tea drinking and bone density since tea drinking may affect other factors such as improving people’s concentration and vigilance. (IANS)