A day-by-day breakdown of coronavirus symptoms shows how COVID-19 goes from bad to worse The first symptom is often a fever. By day five, the person may have difficulty breathing. By day 10, they might be admitted to the ICU. READ MORE Premium 93 units with another 122 under contract: How Emma Powell built a king-size real-estate investment portfolio leveraging a simple strategy "It's like a forensic job to go through all of this," Emma Powell, the owner of Highrise Group, said about her final vetting process for properties. READ MORE Why it's almost impossible for cars to go 300 miles per hour We explore why it was so difficult for automotive engineers to reach 300 mph and how they managed to do it. READ MORE Premium Ashton Kutcher is Hollywood's most active Silicon Valley investor. Here's how he built a lucrative investing career, from making an early bet on Uber to turning a $30 million fund into $250 million. Silicon Valley investor (and TV star) Ashton Kutcher is full of investing advice: invest in what you know, pay attention, and ask stupid questions. READ MORE One chart shows the best and worst face masks for coronavirus protection — and which situations they're suited for A mask made of multiple layers of high-thread-count cotton is preferable to one made from a dishcloth or cotton T-shirt. READ MORE Premium A 34-year-old freelancer who quit the job she hated and now makes $200,000 a year debunks 5 of the biggest myths she's encountered about becoming your own boss Graphic designer Morgan Overholt felt underpaid and overworked, so she quit her job and went to work for herself, learning key lessons along the way. READ MORE How 2020 broke the housing market: So many homes are selling that we could run out of new houses in months Home prices are skyrocketing, inventory is tightening, and at this rate homes could run out in just 2.5 months (down from 3 months in September). READ MORE Premium Amazon Web Services salaries revealed: These 12 cloud jobs fetch as much as $185,000 in base pay — and this is what it takes to get hired These are the highest-paying jobs at AWS, including key responsibilities and how many years of experience they require. READ MORE Premium Investors say these 22 fintechs are ready to take off and become the next big names in consumer finance Investors' picks varied, but a central theme was personal finance, be it through automated saving, investing, or debt management. READ MORE Premium Tesla's 'full self-driving' feature could put Elon Musk on the path Tim Cook followed to make Apple the world's most valuable company Tesla's Autopilot upgrade and other software-based products have set up a "profound" shift in the company's business model, Morgan Stanley said. READ MORE