dow dropped 331 points. s&p fell 2%. the main reason? oil. crude oil fell more than 5% yesterday. it is still sliding this morning. sitting below $49 a barrel. experts now predict oil could fall as low as $40 a barrel before a floor. prices are falling on weak demand weaker global demand. that is causing concerns about a global recession. it is a supply glut in the u.s. low prices are great for drivers, but devastating for countries depending on oil revenue. this is the biggest story in business right now. this huge decline in oil prices. good for consumers, but really destabilizing. >> no one has issues. happening now. a polar plunge across the country. millions facing fast falling temperatures. how low will they go and how long will it last? next. my name is michael. i'm 55 years old and i have diabetic nerve pain. the pain was terrible. my feet hurt so bad. it felt like hot pins and needles