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What causes irritability?

Many factors can cause irritability, including life stress, depression, a lack of sleep, and premenstrual syndrome. In this article, we look at the possible causes of irritability and tips for managing it.

Bipolar: Experts urge better initial care

Specialists reveal that people with bipolar disorder have to wait for a long time for a diagnosis, and that they fail to receive appropriate initial care.

These neurons affect how much you do, or don’t, want to eat

Researchers have identified a network of neurons that coordinate with other brain regions to influence eating behaviors. These findings could help those suffering from disease-induced appetite loss or over-eating.

Lifelong ill-health after exposure to chemical weapons

People exposed to chemical warfare agents (CWAs) often incur chronic damage to their lungs, skin and eyes, for example. They also frequently succumb to depression, anxiety and suicidal thoughts. This is shown by research on survivors from the 1988 gas …

Scientists closer to unraveling mechanisms of speech processing in the brain

A new study that sheds light on how the brain processes language could lead to a better understanding of autism spectrum disorder, schizophrenia and other neurodevelopmental conditions.

Settling the debate on serotonin’s role in sleep

New research finds that serotonin is necessary for sleep, settling a long-standing controversy.

Understanding brain activity when you name what you see

Using complex statistical methods and fast measurement techniques, researchers found how the brain network comes up with the right word and enables us to say it.

Certain cells secrete a substance in the brain that protects neurons

Researchers have discovered a secret sauce in the brain’s vascular system that preserves the neurons needed to keep dementia and other diseases at bay.

Mood neurons mature during adolescence

Researchers have discovered a mysterious group of neurons in the amygdala — a key center for emotional processing in the brain — that stay in an immature, prenatal developmental state throughout childhood. Most of these cells mature rapidly during ad…

Study ties poor sleep to reduced memory performance in older adults

A new study has found that variability in night-to-night sleep time and reduced sleep quality adversely affect the ability of older adults to recall information about past events. The study also found unexpected racial differences in the type of sleep …