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:- A new target for drugs to treat dementia- Using math to stay a step ahead of aneurysms- Putting human cells into rat brains- Hunting a deadly superbug- The best sports for kids to avoid lifelong health risksAnd an honorable mention this week: The benefits of intermittent fasting when it comes to sleeping better