Articles by Alexa Friedman, Ph.D.

Multiple metals detected in tampons, new study finds

Sixteen potentially harmful metals can be found in tampons sold by over a dozen unique brands, a new study finds, highlighting concerns about exposure for people who use them.

Chemical mixtures: What they are and why you should care

People aren’t exposed to chemicals one at a time from a single place or product. They’re exposed to combinations, or mixtures, of chemicals from several sources.

Menstruation is starting earlier and earlier – does chemical exposure play a role?

Girls are starting to menstruate earlier and their cycles are taking longer to become regular than in previous decades, according to a recent peer-reviewed study . The trend disproportionately affects...

Replacement flame retardant chemicals linked to preterm birth, new study finds

A new study finds a link between premature birth and exposure to organophosphate ester flame retardants, or OPEs, used in furniture and foam for mattresses and more. The study also found the risk of...

Hundreds of chemicals in everyday consumer products may increase breast cancer risk

More than 900 chemicals found in cosmetics, drinking water, food and cleaning supplies used by millions of Americans every day may cause biological changes linked to risk of developing breast cancer...