Health & Fitness

Researchers have identified the brain regions responsible for the increased aggression that occurs when male mice spend time with other male mice before an aggressive encounter -- a concept known as social instigation. When social instigation occurs, cells in the lateral habenula signal to the dorsal raphe nucleus, which then communicates with the ventral tegmental area, leading to heightened aggression. These findings may have applications for socially provoked anger or violence.

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A new study reveals the oligomeric molecular structure of the MOR-Gal1R complex, a component present in the brain which is involved in the analgesic and addictive effects of certain opioids.

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The Omicron variants BA.1 and BA.2 of the SARS-CoV-2 virus, which dominated from about December to April, can already circumvent after three months the protection against infection offered by vaccinations and recovery from infection, according to researchers.

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What's the best way to improve your memory as you age? Turns out, it depends, a new study comparing mnemonic and rehearsal-based memorization in people with mild cognitive impairment suggests.

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Idiopathic pulmonary fibrosis (IPF) is an aging-associated disease caused by progressive scarring of the lungs, leading to respiratory failure and death. Therapies to treat IPF are limited, making studies on the mechanisms responsible for this crippling disease a priority. Now researchers have discovered a new mechanism linking the aging of blood vessels to the development of pulmonary fibrosis.

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