Tag Archives: hormones

Chemicals in Plastics Are a Global Health Threat, Says New Report

A new scientific report out Tuesday concludes that plastics and the chemicals they leave behind in the environment are a major threat to human health. It identifies over 140 chemicals readily found in plastic products that can harm our bodies, particularly through interfering with the endocrine system.

DO MEN HAVE HORMONAL CYCLES?

Men do go through hormonal cycles. That much is established. Their testosterone levels tend to peak first thing in the morning, perhaps in concert with circadian rhythms, and then diminish over the course of the day—though exercise can cause fleeting spikes. What science has yet to show is whether hormones dip and rise over weeks or months, as women’s do.

Continue reading DO MEN HAVE HORMONAL CYCLES?

HORMONES CAN CHANGE YOUR SKIN TONE

As far back as the ancient Greeks, people have documented a funny phenomenon among pregnant women: The skin on their faces sometimes changes color. Scientists never quite knew why that happened, though they suspected that it was linked to the spike in the body’s hormones during pregnancy. Now, a new study published this week in eLife found that two sex hormones, estrogen and progesterone, play a key role in regulating the body’s synthesis of melanin, the substance that gives skin pigment.

Continue reading HORMONES CAN CHANGE YOUR SKIN TONE