The Friday Five covers five stories in research that you may have missed this week. There are plenty of controversies and troubling ethical issues in science – and we get into many of them in our online magazine – but this news roundup focuses on scientific creativity and progress to give you a therapeutic dose of inspiration headed into the weekend.Here are the promising studies covered in this week's Friday Five:- Not a fan of breathing in micro plastics? New robot noses could help- You don't need a near-death experience to get the benefits - How to tell the difference between good and bad inflammation - Brain shocks for better memory - don't try this at home (yet)!- A new way to know if your bum back is getting betterThe honorable mention for this week's Friday Five: One activity can increase your longevity even without good genes for living longer.