Health News Study finds more evidence gas stoves are bad for human health: ‘Worse than secondhand smoke’ AI takes on grief and loss, with new chatbot that lets you talk to dead loved ones ‘There’s a temptation to lump octogenarians together’: What you should know about work and aging-brain health The truth about ultraprocessed foods may be ultracomplicated Do people with darker skin tones need to wear sunscreen? Breaking down the myths