Sleeping on the left also allows much of the intestines to hang away from the very thin-walled inferior vena cava (IVC) which brings venous blood back toward the heart. Interestingly, the IVC lies against the right side of the spine, so when you lie on the left much of the viscera falls away from the IVC.
What is a 'Repurchase Agreement - Repo'. A repurchase agreement (repo) is a form of short-term borrowing for dealers in government securities. The dealer sells the government securities to investors, usually on an overnight basis, and buys them back the following day.
The Fed uses these two types of transactions to offset temporary swings in bank reserves; a repo temporarily adds reserve balances to the banking system, while reverse repos temporarily drains balances from the system. Repos and reverse repos are conducted with primary dealers via auction. In a repo, dealers bid on borrowing money versus various types of general collateral. In a reverse repo, dealers offer interest rates at which they would lend money to the Fed versus the Fed's Treasury general collateral, typically Treasury bills. Among the tools used by the Federal Reserve System to achieve its monetary policy objectives is the temporary addition or subtraction of reserve balances via repurchase and reverse repurchase agreements in the open market.