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2 articles from Guardian Unlimited Science

Katrina Karkazis: ‘You can’t use testosterone levels to divide people into male or female’

The cultural anthropologist on why our view of testosterone as the male sex hormone skews both science and societyKatrina Karkazis, a senior research fellow at Yale University, is a cultural anthropologist working at the intersection of science, technology, gender studies and bioethics. With Rebecca Jordan-Young, a sociomedical scientist, she has written Testosterone: An Unauthorised Biography. It...

We need to learn how to relax, without guilt

Being busy all the time is part of the way we live. But, whether gardening, reading or spacing out on the sofa, taking time to rest is just as importantI’m not very good at resting. When I told friends that after writing books covering emotions, time perception and the psychology of money I had started writing one on rest, their first reaction was usually, “But you’re always working. You...