GLP‑1 drugs such as semaglutide have become one of the biggest biotech breakthroughs of the last decade, helping many people lose weight by mimicking a gut hormone that reduces appetite. While the medications are praised for their effectiveness, some clinicians warn they could exacerbate eating‑disorder behaviors in vulnerable individuals.
The concept of a self‑aware city refers to urban areas that use networks of sensors, AI analytics and real‑time data to monitor traffic, energy use, air quality and public safety. By processing this information, the city can automatically adjust street lighting, traffic signals or waste collection, making urban life more efficient and responsive.
‘Forever chemicals’ is a nickname for per‑ and polyfluoroalkyl substances (PFAS), a class of synthetic compounds that do not break down in the environment. PFAS are used in products like non‑stick cookware and waterproof clothing, and they have been linked to health risks such as hormone disruption and immune system effects. Ongoing research and regulation aim to limit their release and find safer alternatives.