With the death of Pope Francis, the world loses not only a church leader but also a moral compass that spoke out against inequality, discrimination, war, and climate destruction, writes MARC VANDEPITTE
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Hormones and control
The flexibility of the hormonal system in humans means that our biology is increasingly in our own hands, write ROX MIDDLETON, LIAM SHAW and MIRIAM GAUNTLETT
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LYNNE WALSH previews the Bristol Radical History Conference this weekend
Keir Starmer’s £120 million to Sudan cannot cover the government’s complicity in the RSF genocide or atone for the long shadow of British colonialism and imperialism, writes CLAUDIA WEBBE
Join the traditional march from Clerkenwell Green, which will bring together countless international workers’ organisations in a statement against the far right
Ecuador’s election wasn’t free — and its people will pay the price under President Noboa
Mountains of research show that hardcore material harms children, yet there are still no simple measures in place
We face austerity, privatisation, and toxic influence. But we are growing, and cannot be beaten
A MULTICELLULAR organism is a spectacular thing. Like all other multicellular beings, we have cells that co-ordinate with each other during growth to diversify into different types. The co-ordination of this process in itself is an extraordinary endeavour: the average adult human is made up of about 30 trillion human cells of around 200 types.
There are several systems by which cells respond to and produce information. Sensory organs can produce triggers, the nervous system acts as an electrically based electrical wiring for superfast connectivity, and individual cells themselves can react to physical forces or to chemicals. These signalling chemicals, most of which circulate in our blood, are known as hormones.
Any circulating chemical that triggers change can be classified as a hormone, meaning they are a diverse group of chemicals. Some trigger organ growth, and those organs then go on to produce other hormones.
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A small Japanese trial has reported some positive results for stem cell therapy to treat spinal-cord injuries
Man-made canals like Panama and Suez face unprecedented challenges from extreme weather patterns and geopolitical tensions that reveal the fragility of our global trade networks, write ROX MIDDLETON, LIAM SHAW and MIRIAM GAUNTLETT
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Fraud in Alzheimer’s research raises difficult questions about the current state of science, write ROX MIDDLETON, LIAM SHAW and MIRIAM GAUNTLETT
