Quick Answer. The liver is an organ of the digestive system. The role of the digestive system is to transform food into necessary energy and to rid the body of solid waste. The liver functions within this system by producing bile and by filtering the blood from the digestive system.
The Times analysis of 2009 death statistics, the most recent available, showed: 1  For the first time ever in the US, more people were killed by drugs than motor vehicle accidents. 2  37,485 people died from drugs, a rate fueled by overdoses on prescription pain and anxiety medications, versus 36,284 from traffic accidents.
The misuse of prescription drugs is second only to marijuana as the nationâs most common drug problem after alcohol and tobacco, leading to troubling increases in opioid overdoses in the past decade. An estimated 25.2% (66.9 million) of Americans aged 12 or older were current users of a tobacco product.