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Xu Qiming, a Chinese 11th grader with cerebral palsy, won his second consecutive gold medal at the 2024 International Mathematical Olympiad (IMO) in Australia, scoring 36 out of 42 points and ranking 12th among 630 participants from around 110 countries. Despite his physical challenges, Xu earned perfect scores on five of the six problems, with one point on the most difficult final problem. His performance helped China top the team rankings, with all six members earning gold and a combined 231 points.

Xu, who was born with cerebral palsy due to oxygen deprivation at birth, has overcome significant mobility difficulties to pursue his passion for math. He previously won gold in 2023 with 35 points, placing 5th globally. This year, 67 students worldwide reached the gold medal threshold of 35 points.

The IMO, established in 1959, is the most prestigious math contest for high school students. Participants solve six advanced math problems over two days, each worth seven points. China, which joined in 1985, has consistently led the competition, winning 191 gold medals and finishing first 25 times. The 2026 IMO will be hosted in Shanghai.

A 21-year-old Australian tourist was found dead in his hotel room in Phuket, Thailand, just a day before his planned return home. Housekeeping staff discovered his body on Wednesday, and local authorities were alerted. Police reported the man was lying on the bed with his phone on his chest and had bandaged injuries on his elbow and wrist from a recent road accident.

There were no signs of assault, theft, or drug/alcohol use, except for a few over-the-counter pills reportedly given by a hotel staff member. His body has been sent to Vachira Phuket Hospital for an autopsy to determine the cause of death.

The Australian Embassy in Bangkok has been notified. This incident follows a series of recent deaths involving Australian tourists in Thailand, including a 43-year-old man found dead at a Koh Samui massage parlor and another found in a Pattaya apartment.

VnExpress has launched the Vietnam Vibes photo and short video contest to celebrate the 80th National Day, inviting people to reflect on Vietnam's transformation—from independence struggles to innovation and global integration. The contest aims to honor the resilience and pride of the Vietnamese people through personal perspectives.

Open to all Vietnamese citizens (domestic and overseas) and international friends, Vietnam Vibes accepts one original photo and one video per person. Submissions must meet quality standards: photos must be JPG or PNG, at least 3,000 pixels on the shortest side and 2MB in size, with no edits or watermarks; videos must be vertical MP4s under 90 seconds, Full HD or higher, and no larger than 200MB. All entries must include proper captions and require consent from individuals featured.

The content should highlight Vietnam's people, landscapes, culture, national pride, or development achievements. The use of the national flag is encouraged. Entries must respect cultural values and legal regulations.

Submissions are open from July 23 to August 23, with online voting held on the official fanpage. Finalists and jury will be announced on August 25, with award decisions and a ceremony to follow by early September. Each category includes First, Second, Third, and Encouragement prizes—the latter based on online popularity.

Judges include Dr. Lam Minh Chau, singer Hong Nhung, and travel blogger Khoai Lang Thang, who will assess entries for technical quality and emotional impact.

Health experts emphasize that incorporating certain fruits into your daily diet can significantly support and protect eye health. According to Eye Clinic London, antioxidants and essential vitamins help reduce the risk of age-related conditions like macular degeneration, cataracts, and dry eyes.

Citrus fruits such as oranges, lemons, and grapefruits are high in vitamin C, which helps maintain eye tissues and blood vessels and may slow age-related vision decline. Berries like blueberries, strawberries, and blackberries offer antioxidants that reduce inflammation, support night vision, and may prevent macular degeneration and dry eyes. They may also improve blood pressure, which benefits eye health.

Bananas provide potassium and vitamin A—key for tear film stability and corneal protection. Mangoes are rich in vitamin A and contain lutein and zeaxanthin, antioxidants that filter harmful blue light and UV rays, helping to shield the eyes from screen exposure and sunlight. Lastly, apricots are packed with vitamins A, C, and E, along with beta-carotene and carotenoids, which enhance night vision and protect the retina from blue and ultraviolet light.

Incorporating these five fruits—citrus fruits, berries, bananas, mangoes, and apricots—can contribute to long-term eye health.

Ho Chi Minh City is grappling with severe air pollution caused primarily by its growing number of vehicles. A recent report from the municipal People's Committee reveals that key traffic-heavy areas like Phu Lam and Cat Lai frequently record PM2.5 and PM10 levels above national safety limits, especially during the dry season. The city now has over 9.6 million registered vehicles, including more than 8.6 million motorbikes, with significant increases since 2024.

Despite efforts to control emissions, progress has been slow due to staffing issues, outdated monitoring equipment, and delayed environmental projects. However, the city is pushing forward with a clean energy roadmap: all buses are to shift to clean energy by 2030, and incentives will encourage electric conversions for taxis, ride-hailing fleets, and over 400,000 motorbikes used by ride-hailing drivers.

The situation in Ho Chi Minh City mirrors challenges in Hanoi, where vehicles are also major pollution sources. While some officials claim motor vehicles contribute just 15% to Hanoi's pollution, a World Bank report shows that two-thirds of PM2.5 in Hanoi comes from surrounding provinces. Hanoi plans to ban gasoline and diesel motorbikes from its urban core starting in 2026, gradually expanding the restrictions to outer ring roads.