Brain cells use a lot of nutrients, which means they produce a lot of waste. Scientists have long believed that the brain has special channels to remove cellular waste, especially during sleep.

Japanese car giant Toyota joins a growing list of companies abandoning so-called "woke" policies.

California, the full name is "State of California", is a state on the Pacific coast of the western United States. The area ranks third in the United States; the population now ranks first among all states in the United States.

The Spanish galleon "Holy Grail" was sunk by the British in 1708 near the Caribbean coast of northern Colombia in South America. It carried billions of dollars worth of gold, silver and emeralds and was known as the most valuable ship in the world. Shipwreck.

According to reports, the hacker group Salt Typhoon, following the instructions of the Chinese Communist Party, has penetrated multiple U.S. Internet service providers in recent months in an attempt to steal sensitive information.

What exactly are families fighting about in the 21st century? A new investigation offers some clues, and the questions are all too familiar.

Countries around the world are increasingly worried about China's destructive role in the global order. However, the United States, Canada, Europe and Latin America do not yet seem to have reached a consensus on how to effectively deal with the China challenge.

The whistleblower claimed that the U.S. Department of Defense was conducting a top-secret government project called "Perfect Constellation" on UFO files.