Substance abuse is a serious problem that affects millions of people around the world. It is defined as the excessive use of drugs or alcohol, which can lead to negative consequences for the individual's health, relationships, and work. Photo by Engin Akyurt There are many different types of substances that can be abused, including alcohol, tobacco, prescription drugs, and illegal drugs. Substance abuse can be a chronic problem, and it can be difficult to overcome. However, there are effective treatments available, and people can recover from substance abuse and live healthy and productive lives. Signs and Symptoms of Substance Abuse There are a number of signs and symptoms that can indicate that someone is struggling with substance abuse. These include: Changes in behavior, such as becoming withdrawn or isolated, losing interest in activities that were once enjoyable, or engaging in risky or dangerous behaviors. Changes in physical appearance, such as weight loss or gain, change...