Monday May 21, 2018
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Antarctica experiences its hottest day, temperature rises up to room level

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Had someone been in Antarctica last Tuesday, he’d probably have felt at home and even warmer than someone in UK at that very time. Mildly warm coffee would have frozen in seconds but sipping it would have been pleasurable.

A record breaking 17.5 degree Celsius temperature was recorded at Argentina’s Esperanza Base, northern tip of Antarctica. The high temperature is highly alarming as the average temperature of the continent is  -10 to -30 degrees Celsius.

The recorded temperature broke the earlier record of 17.4 C on 24 April, 1961.

The rise in the temperature was because of the increasing temperature worldwide due to global warming. Carbon dioxide, a green house gas majorly responsible for global warming has already exceed its permissible atmospheric concentration of 30 ppm by 50 ppm.

A new study last week also revealed that the continent is losing ice at 310 cubic kilometer per year causing sea levels to rise dramatically.

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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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