Science & technology | Periods

A scientific discovery could lead to leak-free period products

Polymers from algae can turn menstrual blood into a gel

Illustration of a woman sunbathing on a towel that is in the shape of a menstrual pad
Illustration: Ryan Chapman

BLEEDING THROUGH a tampon or pad never makes for a good time. The risk of leaks is annoying and stressful for all women who bleed, and especially for the 20% to 30% whose menstrual flow is so heavy that they sometimes must change their tampons or pads every hour. Some dread leaving their homes for fear of getting caught out.

This article appeared in the Science & technology section of the print edition under the headline “Against the flow”

How to raise the world’s IQ

From the July 13th 2024 edition

Discover stories from this section and more in the list of contents

Explore the edition

More from Science & technology

Wildfires are getting more frequent and more devastating

Climate change is accelerating the blaze

The world needs codes quantum computers can’t break

America’s standards agency thinks it has identified three


Why a new art gallery in Bangalore is important for Indian science

It aims to make research and tinkering more accessible to the public


Climate change could reawaken harmful invasive plants

The sooner they can be weeded out, the better

AI scientists are producing new theories of how the brain learns

The challenge for neuroscientists is how to test them

Exposure to the sun’s UV radiation may be good for you

For now, though, keep the sun cream handy