Technology & Innovation

The Post Office Department issued its first postage stamps on July 1, 1847. Previously, letters were taken to a Post Office, where the postmaster, clerk, or assistant would note the postage in the upper right corner.

The treatment consists of a Bluetooth headset that patients can connect to an app on their smartphones. It could mark a revolution in mental health medicine.

The country implemented a national vaccination program to prevent the disease in 2007. New data show that in 2021, no women under age 25 were diagnosed with cervical cancer, marking a major milestone.

Less than 1 percent of cancers start in the heart, and disease that begins elsewhere seldom spreads to the blood-pumping organ. New research suggests mechanical force might have a protective role.

T cells, which target infection and disease, can become more effective after a meal. The finding might help improve cancer-fighting therapies and optimize our response to vaccines.

One of OpenAI’s large language models did better than physicians in several experiments, hinting that A.I.-assisted emergency medical care could be around the corner.

Researchers successfully grew and harvested chickpeas in simulated moon dirt—with a little help from worm poop and a beneficial fungus. However, they’re still testing whether the legumes are safe to eat.

The agency’s decision is based on results from a clinical trial in which the treatment improved hearing in 80 percent of the pediatric participants. However, Deaf community advocates worry about the push to cure hearing loss.