Why our bodies shake when it's cold. Involuntary muscle contractions keep us warm and even fight infections. "Shivering is a way for our bodies to generate heat when we are cold," says Dr. Natasha Bhuyan, a family physician based in Phoenix, Arizona. Breakthroughs, discoveries, and DIY tips sent every weekday. You're walking down a Chicago street on a blustery winter day, when a particularly strong wind almost whips you off of your feet.

Just take a moment to think about how many times you blindly trust someone or something every single day. From the very simple things you might not realise, like trusting your alarm will wake you up or the electricity provider has honoured it's obligation to maintain a steady electricity supply to your house, meaning your breakfast hasn't spoiled over night. Perhaps you're thinking about the trust you share between the members of your household, or that your neighbour will bring your bins in and feed your cats whilst you are on holiday. Did you think about how you trust that your government will support you in times of need, or that when you go to the shops your card will work or the money in your pocket will still be valid? Perhaps you thought about fake-news, as this is a hot topic recently?

Bots that suggest investments to your clients in mere seconds.The future may sound a bit spooky for advisors worried about losing their jobs to automatons. The truth is, as complex digital tools become more practical, advisors will soon have to decide when and where to implement them, says American Banker editor-at-large Penny Crosman. Pitfalls and misfires are bound to come with early adoption. How will advisors avoid missteps, all while pioneering new technology? Striking the right balance between humans and technology is becoming the holy grail for advisory firms.

Nobody calls C3PO creepy, eerie, or spooky. But humanoid doppleganger social robots like Nadine are being found unsettling by many, both because of their appearance and also due to ethical issues connected to the ways they may be used. Nadine is a social robot made in the likeness of creator Professor Nadia Thalmann from Nanyang Technological University (NTU Singapore). Nadine is programmed with intelligent "assistant" software similar to Siri (the Apple computer program that works as an intelligent personal assistant) and Siri's Microsoft counterpart Cortana. Nadine, however, also expresses a version of moods and emotions with the ability to remember the people she has met before as well as conversations.