Tumors constantly shed DNA from dying cells, which briefly circulates in the patient’s bloodstream before it is quickly broken down. Many companies have created blood tests that can pick out this tumor DNA, potentially helping doctors diagnose or monitor cancer or choose a treatment.
How early-life exposure to air and noise pollution impacts youth mental health: Insights from a 25-year study
The impact of prenatal and early life exposure to noise and air pollution on mental health outcomes.