Mad Money W/ Jim Cramer

The Dow closed down nearly 800 points, and Jim Cramer’s looking at the tape and helping you navigate the volatility. Then, Livongo Health fell 9% today after earnings, but after posting a surprise profit, could this decline be a buying opportunity? Cramer’s checking in with the company’s Founder and Executive Chairman to make sense of the company’s future. Plus, Cramer’s going off the charts on the recent market volatility to see if there are any stocks worth buying at these levels.