Exposure to chemicals found in shampoos and toys during early childhood may seriously damage the mental development of youngsters, new research suggests.
Girls with high concentrations of certain chemicals, known as phthalates, in their blood have lower levels of a thyroid hormone, a study found.
Study author Pam Factor-Litvak of Columbia University, said: ‘The thyroid acts as the master controller of brain development.
‘Thyroid hormones set the schedule, and if the timing is out of synch, there may be later consequences in the brain.’
Previous research suggests up to 70 percent of the products we apply to our skin gets absorbed into our bloodstream, with our scalps having one of the highest absorption rates of anywhere on our bodies.
Phthalates are thought to mimic hormones, particularly estrogen, leading to hormonal-disruption driven disorders.