4 results

• CuriousYou do not have a lizard brain.The phrase is everywhere: the rational human brain supposedly sits on top of an ancient reptile brain that controls fear and instinct. It is memorable, intuitive and scientifically misleading.
• PeopleA question about algae ended up giving scientists a light switch for the brain.Peter Hegemann, Georg Nagel and Karl Deisseroth won the 2026 Nobel Prize in Physiology or Medicine for discoveries that made optogenetics possible: using light-sensitive proteins to control selected nerve cells.
• ExplainedWhat is optogenetics? Think of it as a remote control for selected neurons.Optogenetics combines genes and light to control selected cells, especially neurons, with unusual precision. It lets researchers test what specific brain circuits actually do rather than only watching them become active.
• MoneyWeight-loss drugs are becoming a snack-company problem.PepsiCo is already fighting inflation, weak snack volumes and investor pressure. GLP-1 drugs add a more structural question: what happens to a food business built around frequent snacking when some customers feel less hungry?