Sudden bursts of moderate to intense physical activity — such as jogging or having sex — significantly increase the risk of having a heart attack, especially in people who do not get regular exercise, US researchers said on Tuesday.
Doctors have long known that physical activity can cause serious heart problems, but the new study helps to quantify that risk, Issa Dahabreh of Tufts Medical Center in Boston, whose study appears in the Journal of the American Medical Association.
The team analyzed data from 14 studies looking at the link between exercise, sex and the risk of heart attacks or sudden cardiac death — a lethal heart rhythm that causes the heart to stop circulating blood.
They found people are 3.5 times more likely to get a heart attack or have sudden cardiac death when they are exercising compared with when they are not.
And they are 2.7 times more likely to get a heart attack when they are having sex or immediately afterward compared with when they are not. These findings do not apply to sudden cardiac death because there were no studies looking at the link between sex and cardiac death.
Jessica Paulus, another Tufts researcher who worked on the study, said the risk is fairly high as such studies go, but the period of increased risk is brief.
“These elevated risks are only for a short period of time [one to two hours] during and after the physical or sexual activity,” Paulus said in a telephone interview.
Because of that, the risk to individuals over the course of a year is still quite small, she said.
“If you take 10,000 people, each individual session of physical or sexual activity per week can be associated with an increase of one to two cases of heart attack or sudden cardiac death per year,” Paulus said.
She said it is important to balance the findings with other studies showing that regular physical activity reduces the risk of heart attacks and sudden cardiac death by 30 percent.
“What we really don’t want to do is for the public to walk away from this and think exercise is bad,” she said.
What it does mean is that people who do not exercise regularly need to start any exercise program slowly, gradually increasing the intensity of the workout over time.
The onset of summer has sparked a rise in incidents of “mask rage” in South Korea as more hot and bothered commuters either refuse to wear face coverings or leave parts of their faces exposed. In South Korea, Japan and other countries in East Asia, widespread mask wearing has been cited as one possible explanation for the region’s relative success in bringing the COVID-19 pandemic under control. South Korea, one of the first countries outside China to be affected by the virus, flattened the coronavirus curve in April, although it is now struggling with dozens of daily cases, mainly in and around
‘WOULD NOT COMPLY’: The company’s user data are kept in Singapore and it would not turn the data over to Beijing even if asked, TikTok chief executive Kevin Mayer said Social media app TikTok has distanced itself from Beijing after India banned 59 Chinese apps in the country, according to a correspondence seen by Reuters. In a letter to the Indian government dated on Sunday last week and seen by Reuters on Friday, TikTok chief executive Kevin Mayer said the Chinese government has never requested user data, nor would the company turn it over if asked. TikTok, which is not available in China, is owned by China’s ByteDance, but has sought to distance itself from its Chinese roots to appeal to a global audience. Along with 58 other Chinese apps, including Tencent
‘FIGHT FOR FREEDOM’: Hong Kongers will never bow to Beijing, the advocate said, while the US’ envoy to the territory called China’s new security law a ‘tragedy’ The world must stand in solidarity with Hong Kongers after Beijing imposed sweeping national security legislation on the semi-autonomous territory, advocate Joshua Wong (黃之鋒) said yesterday, vowing to continue campaigning for democracy. Wong, one of the territory’s most prominent young advocates and a figure loathed by Beijing, was speaking outside a court where he and fellow advocates are being prosecuted for involvement in last year’s pro-democracy protests. China last week enacted sweeping security legislation for the restless territory, banning acts of subversion, secession, terrorism and collusion with foreign forces. The legislation has sent a wave of fear through the territory, and criminalized dissenting
CHANGING PERCEPTIONS: In its tender, the Hong Kong administration said that it had failed to ‘mobilise the community to support law enforcement actions’ The Hong Kong government has agreed to pay millions of pounds to a discreet London-based PR firm to counter coverage of the territory in the international media. Consulum, which has also represented Saudi Arabian Crown Prince Mohammed bin Salman, was on Monday awarded the ￡5 million (US$6.2 million) one-year contract to improve Hong Kong’s reputation — the same day that China passed national security legislation targeting the territory. The Mayfair-based PR business was founded by Tim Ryan and Matthew Gunther Bushell, two former employees of Bell Pottinger, an agency that has been criticized for representing some governments and leaders that other businesses