The majority of children’s diets in the US consist of ultraprocessed foods, which a growing body of research suggests can lead to metabolic diseases and other conditions.

The National Institutes of Health has been integral to scientific progress in treating countless human diseases. Without its support, patients will ultimately pay the price.

Aging is a major risk factor for many chronic diseases. Figuring out what influences longevity and how to identify rapid agers could lead to healthier and longer lives for more people.

A new study finds that misdirected immune responses can persist for months in those who are suffering from long COVID-19.

While a strong immune response is essential to fight against viral infection, an immune system that continues to stay active long after the virus has been cleared can lead to lung damage.

DNA and mRNA vaccines produce a different kind of immune response than traditional vaccines, allowing researchers to tackle some previously unsolvable problems in medicine.

Weight discrimination, like teasing, is common among youth and linked to eating disorders and depression. Youth’s health and well-being would be best supported by not focusing on their weight.

Those directly exposed to toxic dust and trauma on and after 9/11 carry with them a generation of chronic health conditions, which are placing them at higher risk during the pandemic and as they age.

'Long COVID' – in which people have symptoms lasting more than a few weeks – is turning out to be very common. People hospitalized for COVID-19 are at highest risk, but they aren't alone.