Cancer
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![medical provider in scrubs helps a patient position herself during a mammogram](https://cdn.mos.cms.futurecdn.net/DRaAo8ZwfNGLgbFJBXry8A-320-80.jpg)
Cancer screening may not extend lives, new study suggests. But experts say it's flawed.
By Emily Cooke published
A new analysis of screening tests for four types of cancer suggests that only one actually increases life span, on average. But what do scientists think?
![tightly coiled DNA shown in orange wrapped around a large blue protein, called a histone](https://cdn.mos.cms.futurecdn.net/HWbk2GQwPJaUba96pp4QhV-320-80.jpg)
DNA's 'topography' influences where cancer-causing mutations appear
By Rebecca Sohn published
The topographical features of DNA in the body may dictate where and when cancer-causing mutations appear in its code.
![spindle-shape muscle cells shown depicted in bright green and blue against a black background](https://cdn.mos.cms.futurecdn.net/9JsxMS5zzu7GdgCSFV2P5Z-320-80.jpg)
CRISPR used to 'reprogram' cancer cells into healthy muscle in the lab
By Emily Cooke published
In a new study, stopping skeletal-muscle cancer cells from making a specific protein forced them to turn into healthy muscle cells.
![illustrated light red cancer cells being attacked by blue immune cells. an x chromosome can be seen in a cancer cell on the left side, which has no immune cells on it, while more immune cells are on another cancer cell to the right, which has both an x and a y chromosome](https://cdn.mos.cms.futurecdn.net/EE9CaBtt5M5raai9vw2SWk-320-80.jpg)
'Disappearing' Y chromosome in aging men may worsen bladder cancer, mouse study shows
By Kiley Price published
As men get older, they can lose Y chromosomes in a portion of their cells. This could be helping certain cancers evade the immune system.
![in the foreground, there's a computer screen showing a mammogram. Blurred in the background, we can see a medical provider in a white coat assisting a patient at a mammogram machine](https://cdn.mos.cms.futurecdn.net/cBbZHrYiFsvS2Qm79HL2SR-320-80.jpg)
AI predicts 5-year breast cancer risk better than standard tools — but we aren't sure how it works
By Carissa Wong published
Artificial intelligence models can use breast imaging data to pinpoint those at highest risk of getting breast cancer in the next five years, better than a standard approach.
![A scan of human lungs, depicted in dark red and pink, with a cancerous tumor in the upper right lung shown in yellow and orange](https://cdn.mos.cms.futurecdn.net/23YTpnBLyVSvze3pSsv9wD-320-80.jpg)
Lung cancer pill drastically cuts risk of death after surgery
By Jennifer Nalewicki published
Taking the drug Tagrisso daily after surgery reduced non-small cell lung cancer patients' death risk by more than 50%.
![a black woman with short straightened hair wears a hospital gown and is facing away from the camera. A white woman wearing scrubs is helping position the patient for a mammogram](https://cdn.mos.cms.futurecdn.net/83t2Fxj7cywRjKgen2a2DR-320-80.jpg)
Breast cancer screening should start at age 40, expert task force says
By Nicoletta Lanese published
A task force of experts recommended that female patients be screened for breast cancer starting at age 40.
![image shows a still from an animated video. The still shows a human brain and skull; a small, flat device implanted in the top of the skull emits a pulse of energy into the brain](https://cdn.mos.cms.futurecdn.net/w6Uf2dEhfd7FYfaNtqn4Bo-320-80.jpg)
New ultrasound device helps powerful chemo reach deadly brain cancers, human trial shows
By Nicoletta Lanese published
An implanted ultrasound-emitting device helped chemotherapy drugs safely pass into the brains of cancer patients.
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