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91av. Science news and long reads from expert journalists, covering developments in science, technology, health and the environment on the website and the magazine.

CTBXC4 Closed eye.

Health

Human hibernation sounds fanciful, but it may now be saving lives

Trials involving swapping blood for cold saline show that exploring extraordinary ideas can lead to incredible benefits for human health

Leader

A series of hominoid crania (counterclockwise from the L): juvenile Australopithecus, adult Australopithecus, adult chimpanzee, juvenile chimpanzee, adult Homo erectus (center). Specimens photographed at the UO Museum of Natural and Cultural History.

Humans

Our ancestors’ prenatal growth sped up after we split from chimps

News

Geneticist Svante Pääbo has been awarded a Nobel prize for his work on evolutionary genetics

Health

Nobel prize awarded for study of human evolution using ancient DNA

News

Woman is standing on bathroom scales with happy smiling face on display, over colored background, top view of feet. Weight measurement and control. Concept of healthy lifestyle, dieting and fitness

Health

Weight loss advice isn't based on good evidence

Comment

^BHormone replacement therapy.^b Close-up of Hormone Replacement Therapy (HRT) pills in a circular dispenser. HRT pills are synthetic hormones used to treat menopausal women. They counteract the hormone deficiency that occurs at menopause. These pills contain oestrogen, and often progestogen, drugs. HRT helps to prevent ^Iosteoporosis,^i ^Iatherosclerosis^i and ^Iatrophic vaginitis^i (where the vagina becomes thin and dry). Pills are taken daily on a monthly basis to coincide with the menstrual cycle. Adverse effects include nausea, tenderness of the breasts, fluid retention and leg cramps.

Health

Outdated research on HRT is letting people down

Leader

FEATURE CROP ONLY Galileos watercolours of the moon 'By courtesy of the Ministry of Cultural Heritage and Activities (MiBACT), Central National Library of Florence, Ban of Reproduction

Humans

Scientific illustrations illuminate work by Galileo, Einstein and more

Regulars

3D models of the femur and ulnae of Sahelanthropus tchadensis

Humans

Human ancestors may have walked on two legs 7 million years ago

News

Chewing gum

Humans

Chewing can increase your body's energy use by up to 15 per cent

News

Unlike in other primates, the human voice box has lost small tissue structures called vocal membranes, which may have been involved in the evolution of speech

Humans

Losing parts of our voice box may have helped humans evolve to speak

News

Digital restoration of fossil child and adult crania

Humans

Shape of human brain has barely changed in past 160,000 years

An analysis of fossils suggests changes in the shape of the braincase during human evolution were linked to alterations in the face, rather than changes in the brain itself

News

Humans

Life As Told By a Sapiens to a Neanderthal review: Joyful curiosity

Culture

Humans

Evolution of lactose tolerance probably driven by famine and disease

News

Humans

Mistakenly calling AIs 'sentient' is more dangerous than we think

Comment

Humans

When did humans start making art and were Neanderthals artists too?

News