Opioid addiction can cause serious health issues and can lead to death. Read more on addiction and how to quit.
Alcohol withdrawal syndrome refers to the symptoms experienced when a heavy drinker drastically reduces or stops their alcohol intake.
According to the National Institute on Drug Abuse, about 15 percent of people in the U.S. have tried cocaine. Find out more about the effects of addiction.
If left untreated, HIV can lead to AIDS. AIDS weakens your immune system to the point where it can no longer fight off disease and infection. Learn more.
Thyroid storm is a result of untreated hyperthyroidism. An individual's heart rate, blood pressure, and body temperature can reach dangerously high levels.
The thyroid gland produces a hormone that controls how your cells use energy. Hyperthyroidism occurs when the body produces excessive amounts.
Learn about the symptoms, causes, risk factors, and treatment for neurocognitive disorders (formerly called organic brain syndrome).
Respiratory alkalosis occurs when carbon dioxide levels drop too low. This causes the pH of the blood to rise and become too alkaline.
A head injury is an injury to your brain, skull, or scalp. All head injuries should be treated seriously and assessed by a doctor. Get the facts about 6 major types.
Learn more about anxiety with this overview of anxiety disorders.
Amphetamines are a type of stimulant and can be highly addictive. Consistent amphetamine dependence can lead to overdose, brain damage, and even death.
People who have GAD worry uncontrollably about common occurrences and situations. GAD is different from normal feelings of anxiousness.
Eclampsia is a rare but serious condition that causes seizures during pregnancy. You can develop eclampsia even if you don't have a history of seizures.
Cardiac tamponade is a very serious condition in which your heart can't pump enough blood to your body due to fluid buildup around your heart.
Meningitis can affect you differently depending on your age. Learn more about the symptoms and risk factors for each age group.
Alcohol withdrawal delirium (AWD) is the most serious form of alcohol withdrawal. Here's what you need to know.
Septicemia is bacterial infection spread through the entire vascular system of the body. If untreated it can result in sepsis, a life-threatening inflammation.
Encephalopathy is a general term that describes a disease that damages your brain. Learn about some of the different types and causes of encephalopathy.
PTSD can affect anyone who has undergone a traumatic event. Read more on how to cope with it.
Find out all you need to know about schizophrenia, including early symptoms and treatment options.
This feature is for informational purposes only and should not be used to diagnose. Please consult a healthcare professional if you have health concerns.