New laws cut cannabis arrests, but racial disparities persist

While recreational cannabis laws have significantly reduced arrests for cannabis possession and sales, racial disparities in arrests still exist, according to a new study from Weill Cornell Medicine, Instituto Tecnológico Autónomo de México and the University of Texas at Austin.

A new kind of cold sensor

All life forms need to continuously adapt to temperature changes to survive. Now, Weill Cornell Medicine investigators studying a bacterial protein have identified a new mechanism of sensing cold temperatures.

How ‘bacterial zombies’ play a role in immunity, evolution

Microbes that cause an infection remain biochemically active after they die, continuing to trigger a host’s immune system while also making the immune response less effective.

The brain's hidden defense against a potentially harmful metal

Researchers identify a molecular gatekeeper that clears excess manganese from the brain, offering new clues about a rare neurological condition. 

Student exhibit explores public health history at Cornell

Jeffrey Ho '26 digs through the University Archives to show how the university community dealt with the HIV/AIDS and COVID pandemics.

Around Cornell

Entrepreneurial students win awards for summer work on their startups

Thirty student startups received Human Spirit, Beck Fellows and Cane Entrepreneurial Scholars awards this summer from Entrepreneurship at Cornell, funding that will allow students to work on their startups rather than take traditional summer positions.

Around Cornell

Reverse engineering ketamine’s effects may lead to new antidepressants

Ketamine, an anesthetic, can provide immediate relief to some patients with treatment-resistant depression, but the effects are often short-lived.

T cells secrete DNA to help immune system fight cancer

Activated immune cells secrete tiny capsules bearing DNA that can enter other immune and tumor cells to stimulate the body’s defense systems, according to a study led by investigators at Weill Cornell Medicine.

Nerves in skin can slow melanoma growth

Researchers found that nerves of the sympathetic nervous system are often abundant in melanomas, and can inhibit tumor growth by reducing local tumor-supportive macrophages.