Emotional Pain Brain Circuit Drives Cocaine Relapse

Summary: A new study reveals that a brain circuit driving negative emotions during cocaine withdrawal plays a key role in relapse. Researchers found that this “anti-reward” network becomes hyperactive during…

Immunity to seasonal flu protects against severe illness from bird flu in ferrets, research reveals

Colorized transmission electron micrograph of Avian influenza A H5N1 viruses. Credit: Public Domain The fatality rate for H5N1 highly pathogenic avian influenza in humans has historically been high, with more…

Inflammation Influences Cannabis’s Effects on Anxiety and Sleep

Summary: A new study shows that inflammation levels influence how cannabis affects anxiety and sleep quality. Researchers found no overall change in inflammatory markers after 4 weeks of cannabis use,…

How germy is the public pool? An infectious disease expert weighs in on poop, pee and perspiration – and the deceptive smell of chlorine

On hot summer days, few things are more refreshing than a dip in the pool. But have you ever wondered if the pool is as clean as that crystal blue…

Gambia declares mpox outbreak

Credit: Unsplash/CC0 Public Domain The Gambia reported an outbreak of mpox Tuesday with detection of a single case, as several nearby countries have recorded recent increases in infections. Mpox remains…

Annual UK cost of PTSD likely tops £40 billion, cost analysis reveals

Credit: Unsplash/CC0 Public Domain The annual UK cost of the mental health disorder PTSD is likely to top £40 billion, but the figures are based on 2020–1 prevalence rates—the most…

More than 67,000 cases of deodorant sold at Dollar Tree, Walmart, and Amazon

TUESDAY, July 22, 2025 (HealthDay News) — More than 67,000 cases of Power Stick deodorant have been recalled due to an undisclosed manufacturing issue. The recalled deodorants, made by A.P.…

Why the Psychopathic Brain Struggles With Emotion and Control

Summary: New research reveals how structural brain connectivity shapes psychopathic traits and externalizing behaviors. Using advanced connectome modeling, scientists identified two key networks: one tied to impaired emotional processing, the…

Cellular senescence may be to blame for some diseases

General mechanisms of cellular senescence. Credit: Experimental & Molecular Medicine (2025). DOI: 10.1038/s12276-025-01480-7 Cellular senescence is a process in which the cell cycle becomes permanently arrested, thereby inhibiting cell division,…

Anti-obesity medications associated with weight rebound post-treatment

Credit: Unsplash/CC0 Public Domain Patients prescribed drugs to help them lose weight may experience a rebound in weight gain after halting their prescription, finds a meta-analysis published in BMC Medicine.…