Sunday March 24, 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)

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Beware! Sipping Hot Tea Raises Risk of Esophageal Cancer

Esophageal cancer is the sixth most common cancer in India and eighth most globally. It affects more men than women.

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tea
Scalding water irritates the lining of the mouth and throat which can fuel tumours, scientists believe. Pixabay

Love to drink your tea piping hot? Beware, it could raise the risk of esophageal cancer, finds a study.

The study showed that risk of esophageal cancer more than doubled among those who regularly drank tea at 75 degrees Celsius

However, waiting for at least four minutes before drinking a cup of freshly boiled tea can reduce the risk of the cancer arising from the oesophagus — the food pipe that runs between the throat and the stomach.

“Many people enjoy drinking tea, coffee, or other hot beverages. However, according to our report, drinking very hot tea can increase the risk of esophageal cancer, and it is therefore advisable to wait until hot beverages cool down before drinking,” said lead author Farhad Islami of the American Cancer Society.

tea
The study showed that risk of esophageal cancer more than doubled among those who regularly drank tea at 75 degrees Celsius. Pixabay

The study, published in the International Journal of Cancer, involved 50,045 individuals aged 40 to 75 years.

Drinking 700 ml per day of tea or more at a higher temperature (60 degrees Celsius or higher) was associated with a 90 per cent higher risk of esophageal cancer, the researchers said.

The results could also be extended to coffee, hot chocolate or other hot beverages.

Esophageal cancer is the sixth most common cancer in India and eighth most globally. It affects more men than women.

coffee

The results could also be extended to coffee, hot chocolate or other hot beverages. pixabay

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In 2016, the World Health Organisation (WHO) had warned of the cancer risk associated with drinks above 65 degrees Celsius.

Scalding water irritates the lining of the mouth and throat which can fuel tumours, scientists believe. (IANS)