30 January 2023
The US Food and Drug Administration has proposed changing the screening process for blood donations so that they measure an individual's risk, rather than exclude people based on their sexual orientation or gender
27 January 2023
The American Academy of Pediatrics recommends intensive interventions to manage weight loss, including drugs and surgery – but it’s unclear whether they will reduce childhood obesity
30 July 2019
Measles cases are rising in the US at an alarming rate. There have now been 1164 this year, which is the highest year on record since 1992
9 October 2017
Tracking tiny variations in light reflected at the base of a wall can let you count people in a room and see where they are moving
26 September 2017
The world’s first voucher system for people who donate kidneys has boosted donations by giving US donors transplant coupons they can give to loved ones in need
15 August 2017
Acoustic weapons are shrouded in mystery - now, US and Canadian diplomats seem to be suffering from the symptoms of an attack. Here's what could have happened
31 July 2017
A bold proposal in the US to cut cigarette nicotine to sub-addictive levels is interesting, but there are big challenges to making it work, says Linda Bauld
19 July 2017
Though Republicans in the US hold both Congress and the White House, Obamacare will not be repealed, meaning continued healthcare for millions of Americans
26 May 2017
People in the US stand to lose sleep as the climate warms – and those in hotter countries will be harder hit
4 May 2017
The bill now needs to be debated in the Senate, but could cost millions of people their health insurance if it passes
