Researchers are gaining a better understanding of what impacts our mental health. CBSN spoke with psychiatrist Dr. Daniel Bober about what contributes to changes in mental health, including social media and diet. Source

The White House is pushing back against House Democrats’ impeachment inquiry, escalating the fight between the two branches of the government. In a letter, the Trump administration called it unconstitutional and a violation of due process. CBSN legal contributor Keir Dougall, a former assistant U.S. attorney for New York’s eastern district, joined CBSN to discuss where the Trump administration’s argument stands legally. Source

House Democrats issued a subpoena yesterday to Energy Secretary Rick Perry. This follows the president’s claims that Perry was the one who asked him to speak with the president of Ukraine in their July phone call. Axios White House and national politics reporter Alayna Treene joined CBSN to discuss the significance of these developments. Source

To celebrate International Girls in Aviation Day, Delta took 120 girls, ages 12 to 18, to NASA’s headquarters to learn about STEM and careers in aviation and aerospace. Source

A 41-year-old man was arrested on suspicion of terrorism Friday after injuring several people in a stabbing spree at a shopping center in Manchester, England. The man entered the Arndale shopping center Friday morning with a large knife and attacked people, police said. Source

Japan’s government is warning people to leave high-risk areas as a powerful storm approaches. Typhoon Hagibis is expected to hit Japan’s east coast, including the Tokyo area. CBS News foreign correspondent Lucy Craft has the latest from Tokyo. Source

Rescue crews in New Orleans spent the day searching for a missing worker after a hotel under construction collapsed on the outskirts of the French Quarter. At least two people were killed when the Hard Rock Hotel came crashing to the ground Saturday. Meg Oliver reports. Source

Tyler Skaggs, the Los Angeles Angels pitcher who died this summer, was reportedly given drugs by a team employee. Skaggs was found dead in a Texas hotel in July. An autopsy found opioids in his system. According to ESPN, an Angels public relations representative told federal agents he gave Skaggs oxycodone and watched him snort drugs the night before he died. Source

California will soon become the first state in the nation to ban the sale and manufacture of new fur products. The law takes effect in 2023. Governor Gavin Newsom also signed a new law barring most animals from circus performances. Source

A white police officer shot and killed a black woman inside her own home in Fort Worth on Saturday. According to recent data compiled by The Washington Post, there have been 75 deadly police shootings in Texas this year. Jonathan Vigliotti reports. Source