Lability

Lability refers to the capacity or tendency to change, especially in the context of emotions or physiological conditions. It is a term used in various fields of medicine, including psychiatry, neurology, and endocrinology.

Psychiatry

In psychiatry, emotional lability refers to rapid, often exaggerated changes in mood, where strong emotions or feelings (uncontrollable laughing or crying, or heightened irritability or temper) occur. These very strong emotions are sometimes expressed in a way that is not related to the person's emotional state. This is a common symptom in various psychiatric disorders, such as bipolar disorder, borderline personality disorder, and ADHD.

Neurology

In neurology, lability is often associated with the central nervous system. Neurological lability can refer to fluctuations in neurological status, which can be a sign of serious conditions such as encephalitis or brain injury. It can also refer to a state of increased reflexes, such as the Babinski reflex.

Endocrinology

In endocrinology, lability can refer to unstable or fluctuating levels of hormones in the body. This can be seen in conditions such as diabetes, where blood glucose levels can fluctuate widely, or in thyroid disorders, where levels of thyroid hormones can be unstable.

See also

• Mood (psychology)
• Emotion
• Mental health
• Neuroscience
• Endocrine system