The no-wash movement: would you wear underpants for a week without cleaning them?

Do you need to wash your T-shirts after every wear? Probably not. What about your knickers? That depends. But more and more people are eschewing detergent to save time, money and the environment

‘Western arrogance’: how the wellness movement co-opted an Amazon frog toxin with deadly effects

Kambo, a secretion used in tribal cleansing ceremonies, has been implicated in deaths worldwide and experts are sounding the alarm

Should I worry about pesticides?

Many of them don’t pose a risk to humans. But what about the less natural stuff that goes on our food?

Labour vows to introduce Scottish-style right to roam law in England

Party promises to enshrine in law equal access to benefits of green spaces if it wins next election

92 constituencies in England allow no right to roam, data shows

Exclusive: Campaigners call for Scottish-style rights to reach nature, as figures show ‘hugely unequal’ distribution of access

Pollen bomb! Six ways to fight hay fever this spring, from vitamin D to making new friends

Air pollution and the climate crisis are making pollen even more of a menace. Here’s how to stop your eyes itching and nose streaming

Why don’t whales get cancer? Cracking one of medicine’s greatest mysteries

Understanding why some animals are more susceptible to the disease could lead to improved screening for humans

Global craze for collagen linked to Brazilian deforestation

Investigation finds cases of the wellness product, hailed for its anti-ageing benefits, being derived from cattle raised on farms damaging tropical forest

What is collagen and why is it so popular in the beauty industry?

The protein gives our bodies elasticity and resilience, and there’s always a market for products promising to turn back the clock

RHS developing ‘wellbeing blueprint’ to enhance health benefits of gardens

Scientists conducting tests at experimental garden in Surrey to determine effects plants and flowers have on people