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Research: Walking 7,000 Steps a Day a Huge Boost to Health

Step up: Walking even just a little more every day could have big health benefits. Tolga Akmen / AFP/File
Step up: Walking even just a little more every day could have big health benefits. Tolga Akmen / AFP/File
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Research: Walking 7,000 Steps a Day a Huge Boost to Health

Step up: Walking even just a little more every day could have big health benefits. Tolga Akmen / AFP/File
Step up: Walking even just a little more every day could have big health benefits. Tolga Akmen / AFP/File

People who walk 7,000 steps a day have a dramatically lower risk of a broad range of serious health problems, the largest review of the evidence yet said Thursday.

The most widely promoted target for people tracking their number of steps is 10,000 -- but that figure reportedly originally came from a 1960s marketing campaign for a Japanese pedometer, AFP said.

To find a more scientific target, an international team of researchers sifted through 57 previous studies that covered 160,000 people.

The results published in the Lancet Public Health journal found that walking 7,000 steps a day nearly halved people's risk of early death from all causes, compared to 2,000 steps.

The study also looked into health problems not previously covered by research into step counts.

Walking 7,000 steps a day was linked to people's risk of dementia falling by 38 percent, depression dropping 22 percent and diabetes decreasing 14 percent.

It was also associated with lower rates of cancer and falls, though the researchers warned this was based on less evidence.

"You don't need to hit 10,000 steps a day to get major health benefits," Paddy Dempsey, a study co-author and medical researcher at Cambridge University, told AFP.

"The biggest gains happen before 7,000 steps, and then benefits tend to level off," he said.

While people's speeds vary widely, 7,000 steps adds up to roughly an hour of walking throughout the day.

Dempsey emphasized that people already managing 10,000 or more steps should keep it up.

But he had a message for people who might find 7,000 steps daunting: "don't be discouraged".

"If you're only getting 2,000–3,000 steps a day, aim to add an extra 1,000 steps. That's just 10–15 minutes of light walking spread across the day," he said.

Andrew Scott, a researcher at the University of Portsmouth not involved in the study, said that "it demonstrates that overall more is always better".

"People should not focus too much on the numbers, particularly on days where activity is limited," he added.

The World Health Organization recommends at least 150 minutes of moderate to intense physical activity a week. Nearly a third of people worldwide do not reach this target, according to the WHO.

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Saudi Arabia Reaffirms Commitment to Environmental Action on Saudi Green Initiative Day

One of the mountainous areas located in the south of the Kingdom of Saudi Arabia (Asharq Al-Awsat)
One of the mountainous areas located in the south of the Kingdom of Saudi Arabia (Asharq Al-Awsat)
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Saudi Arabia Reaffirms Commitment to Environmental Action on Saudi Green Initiative Day

One of the mountainous areas located in the south of the Kingdom of Saudi Arabia (Asharq Al-Awsat)
One of the mountainous areas located in the south of the Kingdom of Saudi Arabia (Asharq Al-Awsat)

The Saudi Green Initiative (SGI) Day, observed annually on March 27 following a Cabinet decision, reflects the Kingdom's commitment to establishing a culture of sustainability, enhancing national environmental efforts, and encouraging all sectors to achieve sustainable development goals in line with Vision 2030, SPA reported.

The initiative recently achieved a significant national milestone by rehabilitating one million hectares of degraded land through the National Greening Program, overseen by the National Center for Vegetation Cover Development and Combating Desertification. This objective aims to expand vegetation cover, reduce desertification, improve quality of life, and enhance the natural capacity of local environments to adapt to climate change.

The achievement is an extension of the Kingdom's broader efforts to protect natural resources, reduce emissions, promote reliance on clean energy, and preserve biodiversity, thereby strengthening Saudi Arabia's regional and international standing in environmental action.

Over the past year, the initiative has continued to make tangible progress. More than 159 million trees were planted across the Kingdom, and environmental reserves saw the birth of Arabian oryx calves for the third consecutive year. Furthermore, the National Water Efficiency and Conservation Center currently saves 120,000 cubic meters of water daily, with plans to increase this capacity to 300,000 cubic meters.

These combined efforts align with the objectives of Vision 2030 and contribute to strengthening the Kingdom’s regional and international standing in environmental sustainability.

SGI Day is observed annually to highlight the initiative’s achievements, review its future goals, and encourage broad sector participation in environmental efforts and sustainable development.

These efforts reflect the Kingdom’s approach to environmental and climate action, driven by the Saudi Green Initiative and the Middle East Green Initiative, both launched by Prince Mohammed bin Salman bin Abdulaziz Al Saud, Crown Prince and Prime Minister, underscoring its ongoing commitment to supporting the transition toward a more sustainable development model.

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Satellite Observations Offer Insight into a Tsunami’s Early Stages

A person shows a cell phone displaying a message to evacuate to a tsunami safety zone during an evacuation of the coast following a tsunami warning issued by local authorities after an earthquake struck the Kamchatka Peninsula in the far east of Russia, triggering warnings and evacuations across the South Pacific, in Dichato, near Concepcion, Chile, July 30, 2025. (Reuters)
A person shows a cell phone displaying a message to evacuate to a tsunami safety zone during an evacuation of the coast following a tsunami warning issued by local authorities after an earthquake struck the Kamchatka Peninsula in the far east of Russia, triggering warnings and evacuations across the South Pacific, in Dichato, near Concepcion, Chile, July 30, 2025. (Reuters)
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Satellite Observations Offer Insight into a Tsunami’s Early Stages

A person shows a cell phone displaying a message to evacuate to a tsunami safety zone during an evacuation of the coast following a tsunami warning issued by local authorities after an earthquake struck the Kamchatka Peninsula in the far east of Russia, triggering warnings and evacuations across the South Pacific, in Dichato, near Concepcion, Chile, July 30, 2025. (Reuters)
A person shows a cell phone displaying a message to evacuate to a tsunami safety zone during an evacuation of the coast following a tsunami warning issued by local authorities after an earthquake struck the Kamchatka Peninsula in the far east of Russia, triggering warnings and evacuations across the South Pacific, in Dichato, near Concepcion, Chile, July 30, 2025. (Reuters)

Observations made by a satellite operated by the US and French space agencies shortly after a strong earthquake struck off Russia's Kamchatka Peninsula last year are giving scientists a better understanding of how tsunamis originate and propagate.

The researchers said the findings may help improve understanding of future tsunamis and earthquakes at subduction zones, particularly near the ocean trench where two tectonic plates meet and one slides beneath the other. The strongest tsunamis often are generated by such quakes.

The magnitude 8.8 quake struck on July 29, 2025, triggering a tsunami that spread across the Pacific Ocean. A tsunami - a series of extremely long and powerful ocean waves - is caused by large movements of the seafloor that push water up or down, often during earthquakes or landslides that occur under water.

The NASA-CNES Surface Water and Ocean Topography, or SWOT, satellite ‌made its observations ‌within 70 minutes of the start of the earthquake. It observed not ‌only ⁠the leading wave ⁠of the tsunami, but also a distinct pattern of smaller waves trailing behind it.

Such wave patterns had long been predicted in computer models and theoretical studies, but had been difficult to confirm with real-world observations, the researchers said.

"I believe SWOT represents a new lens for observing and studying tsunamis and their generation," said Ignacio Sepúlveda, a professor of coastal engineering at San Diego State University and lead author of the study published this week in the journal Science.

"It is also likely to improve our understanding of the physical mechanisms that generate tsunamis, including earthquakes," ⁠Sepúlveda added.

Traditional deep-ocean pressure sensors and other satellites have limitations in coverage ‌and measurement, making it difficult to capture the full structure of ‌the waves, especially near the trench, the researchers said.

SWOT scans a wide swath of the ocean, producing two-dimensional maps ‌of sea surface height. This allows scientists to see the shape, direction and spacing of tsunami waves ‌in much greater detail.

Tsunamis are among the strongest and most destructive natural forces, with powerful waves radiating from a point of origin outward in all directions. These waves can cause damaging and deadly coastal flooding.

The tsunami in this study did not cause significant loss of life, but others have caused huge death tolls such as the 2004 Indian Ocean ‌tsunami that killed some 230,000 people.

The July 2025 tsunami originated within about 10 kilometers (six miles) of the trench, the place in the seafloor ⁠where two tectonic plates intersect, ⁠the researchers found. This location could not previously be determined using traditional land-based instruments or sparse sensors on the seafloor alone.

Earth's surface is made up of immense plates that move very gradually in a geological process called plate tectonics.

The researchers found that when earthquake-caused movement extends close to the trench, it can generate shorter waves that travel more slowly and spread out over time, forming a trailing pattern behind the main tsunami front. This behavior means that different parts of the wave move at different speeds, with longer waves moving more quickly and leading, while shorter ones lag behind.

The study also showed that the strength of the trailing waves increases when earthquake movement extends closer to the trench, suggesting these waves are linked to where and how the tsunami was generated near the trench.

"This opens a new window to understand in a better way what happens with earthquakes and tsunamis near the trench," Sepúlveda said, referring to SWOT observations. "In the future, this knowledge will allow us to improve models we use to evaluate tsunami hazards in coastal communities and make them more resilient."

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Gabon Battles for Baby Sea Turtles’ Survival

An olive ridley sea turtle hatchling moves on a beach after emerging from its nest near Libreville on February 15, 2026. (AFP)
An olive ridley sea turtle hatchling moves on a beach after emerging from its nest near Libreville on February 15, 2026. (AFP)
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Gabon Battles for Baby Sea Turtles’ Survival

An olive ridley sea turtle hatchling moves on a beach after emerging from its nest near Libreville on February 15, 2026. (AFP)
An olive ridley sea turtle hatchling moves on a beach after emerging from its nest near Libreville on February 15, 2026. (AFP)

Small enough to fit in the palm of your hand, newly hatched sea turtles emerged on a Gabonese beach to embark on the treacherous 10-meter (33-foot) scramble across the sand to the ocean.

"The survival rate for turtles is one in 1,000," Francois Boussamba, a Gabonese turtle expert and head of the NGO Aventures Sans Frontieres (Adventures Without Borders), told AFP, scouring for nests.

Conservationists from NGOs and the national parks agency patrol Gabon's beaches daily during the nesting season to protect the turtles' nests.

Those under threat are moved to a hatchery, a fenced enclosure near the sea, where the eggs are kept safe until they are ready to hatch.

On Pongara National Park's white sandy beaches, about 30 minutes by boat from the capital Libreville, conditions are optimal for nesting: wild coastline, a favorable equatorial climate and an open ocean beach with gentle slopes, ideal for the females.

But dangers lurk. Nests are threatened by coastal erosion due to encroaching sea levels, or myriad predators such as crabs and birds that prevent the eggs from reaching their 60-day incubation period, Boussamba said.

"The chances of survival are tiny," he said.

- Muscle up -

In Libreville, every morning around 7:00 am, volunteers from the Project Turtles Tahiti Gabon association crisscross the beach and check the nests in the hatchery.

After one has hatched, the baby turtles have to be moved so they can reach the sea -- but they are never put straight into the water.

"They need to build up their muscles so they can swim in the ocean," volunteer Clemence said.

Four species of turtles -- green, olive ridley, hawksbill and leatherback -- come to nest along Gabon's 900 kilometers (560 miles) of coastline from October to April.

It has the highest nesting density on the African continent, according to the US-based NGO Wildlife Conservation Society.

Gabon is the world's leading nesting site for the leatherback turtle, the largest of the species and listed as threatened by the International Union for Conservation of Nature (IUCN).

In addition to predators, sea turtles are also threatened by human activities, from plastic pollution to industrial fishing and poachers.

By watching over the eggs, the rangers in Pongara help ensure "the survival of this species", Edouard Moussavou, Pongara park's deputy director, said.

- Unpaid wages -

Since 2013, Gabon's conservation efforts had received funding from the United States, notably through the US Fish and Wildlife Service, an agency responsible for biodiversity.

"If there are turtles, it means our ecosystem is sound and healthy," Boussamba said.

But since the suspension of grants by the administration of US President Donald Trump, "turtle monitoring activities have stopped or slowed down drastically", Moussavou said.

"There will be fewer staff, less data, and that really creates difficulties for us," he said.

Additionally, there have been delays in paying the staff of the National Agency for National Parks (ANPN), which manages the country's 13 parks, according to Sosthene Ndong Engonga, secretary-general of the National Union of Gabonese Ecoguards.

The around 580 eco-rangers regularly go unpaid.

"Even when there is money, we have to make a big fuss to get our salaries," he said, adding he battled with the treasury last month for back pay.

The eco-rangers, who are crucial for the conservation of Gabon's biodiversity, face having "to give everything up," Engonga warned. "We have expenses we can no longer cover," he said.

On Pongara beach, 40-year-old Alain Banguiya carries out night patrols, hoping to see a leatherback turtle emerge from the water to lay her eggs in the sand.

An eco-ranger since 2015, he has not been paid for two months but says that giving up is out of the question.

"We have a duty to fight to the end, to keep our spirits up," he said. "Despite the obstacles, we stay the course: conservation."