Half of China Hit by Drought in Worst Heatwave on Record

A tree trunk lies on the dried-up riverbed of the Jialing river, a tributary of the Yangtze, that is approaching record-low water levels in Chongqing, China, August 18, 2022. REUTERS/Thomas Peter
A tree trunk lies on the dried-up riverbed of the Jialing river, a tributary of the Yangtze, that is approaching record-low water levels in Chongqing, China, August 18, 2022. REUTERS/Thomas Peter
TT

Half of China Hit by Drought in Worst Heatwave on Record

A tree trunk lies on the dried-up riverbed of the Jialing river, a tributary of the Yangtze, that is approaching record-low water levels in Chongqing, China, August 18, 2022. REUTERS/Thomas Peter
A tree trunk lies on the dried-up riverbed of the Jialing river, a tributary of the Yangtze, that is approaching record-low water levels in Chongqing, China, August 18, 2022. REUTERS/Thomas Peter

A crippling drought exacerbated by a record heat wave has spread out across half of China and reached the normally frigid Tibetan Plateau, according to official data released ahead of more searing temperatures on Thursday.

The world's second-largest economy has been hit by heatwaves, flash floods and droughts -- phenomena that scientists say are becoming more frequent and intense due to climate change, AFP said.

Southern China has recorded its longest continuous period of high temperatures since records began more than 60 years ago, the agriculture ministry said this week.

Experts have said the intensity, scope and duration of the heatwave could make it one of the worst recorded in global history.

A chart from the National Climate Centre showed Wednesday that swathes of southern China -- including the Tibetan Plateau -- were experiencing "severe" to "extraordinary" drought conditions.

The worst-affected area -- the Yangtze river basin, stretching from coastal Shanghai to Sichuan province in China's southwest -- is home to over 370 million people and contains several manufacturing hubs including the megacity of Chongqing.

The China Meteorological Administration predicted continued high temperatures of up to 40 degrees Celsius (104 degrees Fahrenheit) in Chongqing and the provinces of Sichuan and Zhejiang Thursday.

But some regions gained relief from the heatwave. Parts of southwestern Sichuan were battered by heavy rains overnight, causing the evacuation of almost 30,000 people, state broadcaster CCTV reported.

And in the southeast, Typhoon Ma-on made landfall in coastal Guangdong province and Hong Kong Thursday morning.

"High temperatures have basically been alleviated in the regions of south China, Jiangxi and Anhui," the meteorological administration said.

"But high temperatures will continue for the next three days in regions including the Sichuan basin and provinces surrounding Shanghai."

- 'Severe threat' -
China's State Council on Wednesday announced a 10 billion yuan ($1.45 billion) subsidy to support rice farmers experiencing drought conditions which authorities have warned pose a "severe threat" to this year's autumn harvest.

China produces more than 95 percent of the rice, wheat and maize it consumes, but a reduced harvest could mean increased demand for imports in the world's most populous country -- putting further pressure on global supplies already strained by the conflict in Ukraine.

Wednesday's CCTV evening news broadcast showed trucks supplying villagers who lacked drinking and agricultural water in rural Sichuan and Chongqing, with remote mountain areas particularly hard-hit.

Chongqing and Sichuan have also been battling wildfires since last week, exacerbated by high temperatures and water scarcity.

Temperatures as high as 45 degrees Celsius (113 Fahrenheit) have led multiple Chinese provinces to impose industrial power cuts, as cities struggle to cope with a surge in demand for electricity.

Record low water levels on the Yangtze River have also put pressure on the region's hydropower generators.

Recent heat broke records in Sichuan, where one county recorded a temperature of 44 degrees Celsius (111 Fahrenheit) Wednesday.



Should You Stretch before Exercise? After? Never? Here’s What to Know

 Philadelphia Eagles stretch as they get ready during practice at NFL football training camp, Thursday, July 25, 2024, in Philadelphia. (AP)
Philadelphia Eagles stretch as they get ready during practice at NFL football training camp, Thursday, July 25, 2024, in Philadelphia. (AP)
TT

Should You Stretch before Exercise? After? Never? Here’s What to Know

 Philadelphia Eagles stretch as they get ready during practice at NFL football training camp, Thursday, July 25, 2024, in Philadelphia. (AP)
Philadelphia Eagles stretch as they get ready during practice at NFL football training camp, Thursday, July 25, 2024, in Philadelphia. (AP)

For many people of a certain age, high school gym class began with reaching for their toes. Then, over the years, we were told it was better to stretch after exercise.

It turns out, both those things can be true, but the differing advice has created some confusion.

Stretching can help make you more flexible, improve range of motion in your joints — and feel good. David Behm, who researches human kinetics at Memorial University of Newfoundland in St. John’s, Canada, offers this advice on when to stretch and how to do it safely:

Warm up first

It’s almost always good to stretch, but it’s better if you warm up first, said Behm, author of "The Science and Physiology of Flexibility and Stretching." He recommends a light aerobic activity such as jogging, walking or cycling for five or 10 minutes.

Follow that with some static stretching, the traditional way of reaching and holding a position (think back to that gym class). You can then do activity-specific dynamic stretching, in which you warm up the muscles with repetitive movements like leg lifts.

Behm says one minute is "the magic number" for how long to do static stretching per muscle group without fatigue.

Expand your definition of 'stretching'

Should you always stretch before exercising? If it's traditional stretching, not necessarily.

The better question, Behm says, is, "Should people increase their range of motion? Should people have better flexibility? And that is yes, because it helps prevent injuries. It helps with health. But you don’t have to stretch to achieve that."

Resistance training, for instance, can be an effective form of stretching, he said. Doing a chest press increases range of motion in your deltoids and pecs, whether with barbells, dumbbells or machines, so there is no need to stretch beforehand. Just make sure to start with a small amount of weight to warm up and then add more to train.

"You probably don’t have to do extra stretching unless you’re a gymnast, a figure skater, or even a golfer who needs a great range of motion through that swing," Behm said.

Nor do you need to stretch first if you’re going for a leisurely run. Simply start with a slow jog to warm up and then increase the pace.

Don't do it if it hurts

After exercise, "light stretching is OK, as long as you don't reach a point where you're feeling pain," Behm said. Since your muscles will be warm by that point, overdoing it makes you more likely to injure yourself.

Foam rollers can help with muscle recovery and have been shown to increase range of motion as well as stretching.

Do some static stretching before sports

If you’re playing a sport, Behm said, static stretching beforehand helps reduce muscle and tendon injury.

"If you’re going to do an explosive movement, change of direction, agility, sprint, any of these explosive activities that involve your muscles and tendons," he said, "you’re going to be stronger if you do static stretching."

People can especially get in trouble when they go back to a sport they used to play, whether it's tennis, surfing or any sort of team activity.

Also, stretch both sides equally. Lacking flexibility on one side also can lead to injury.

Sounds simple. Why all the confusion? Different studies over the years have either encouraged or discouraged stretching before exercise. Behm says that partly because some studies didn't reflect real-life conditions, or were designed with elite athletes in mind, not regular people.

"If you’re Usain Bolt, it makes a difference," said Behm. Not so much for the rest of us.