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Grief is a natural reaction to loss, but severe grief can interfere with your ability to function. You can get treatment for this condition.

Personality disorders destabilize the way a person thinks, feels, and behaves. If untreated, they can undermine relationships and lead to severe distress.

Although anger itself isn't a disorder, it can get out of hand. If this feeling interferes with your relationships and daily functioning, treatment can help.

Anxiety is a common mental health condition that can include excessive worry, panic attacks, physical tension, and increased blood pressure.

This mental health condition is characterized by extreme mood swings between depression, mania, and remission.

Symptoms of depression may include fatigue, a sense of numbness, and loss of interest in activities. This condition can range from mild to severe.

OCD is characterized by intrusive and distressing thoughts that drive repetitive behaviors. This pattern disrupts daily life and relationships.

PTSD is a long-term mental health issue caused by a disturbing event or events. Symptoms include anxiety, dissociation, flashbacks, and intrusive thoughts.

The act of intentionally harming oneself, also called self-injury, is associated with mental health issues like depression.

Stress is a natural reaction to challenges, and it can even help you adapt. However, chronic stress can cause physical and mental health issues.

Using alcohol as a coping mechanism, or drinking excessively throughout the week, signals an alcohol use disorder.

Benzodiazepines are prescribed to treat anxiety and sleep issues. They are highly habit forming, and their abuse can cause mood changes and poor judgement.

A person with multiple mental health diagnoses, such as addiction and depression, has co-occurring disorders also called dual diagnosis.

Cocaine is a stimulant with euphoric effects. Agitation, muscle ticks, psychosis, and heart issues are common symptoms of cocaine abuse.

Drug addiction is the excessive and repetitive use of substances, despite harmful consequences to a person's life, health, and relationships.

Ecstasy is a stimulant that causes intense euphoria and heightened awareness. Abuse of this drug can trigger depression, insomnia, and memory problems.

Heroin is a highly addictive and illegal opioid. It can cause insomnia, collapsed veins, heart issues, and additional mental health issues.

Hallucinogenic drugs—like LSD—cause euphoria and increased sensory experiences. When abused, they can lead to depression and psychosis.

Methamphetamine, or meth, increases energy, agitation, and paranoia. Long-term use can result in severe physical and mental health issues.

Opioids produce pain-relief and euphoria, which can lead to addiction. This class of drugs includes prescribed medication and the illegal drug heroin.