2020-01-25 New Scientist International Edition

25 January 2020 | New Scientist | 3

MANY

CONDITIONS,

A radical new theory of mental illness ONE CAUSE?

offers fresh hope for treatment

Inside story of China’s MOON GARDEN

lunar farm

How Stone Age travellers OVER THE HORIZON

ASTEROID INCOMreached AustraliaING

The people with a plan to prevent an apocalypse

WEEKLY 25 January 2020

LIVING CONCRETEPLUS GOOP LAB SCIENCE / / CRISPR CHICKEN A WOLF CUB PLAYS FETCH / MYSTERY DRONES/^

THE GREAT NUTRIENT COLLAPSE

Is our food really getting less nutritious?

9 770262 407312

No 3266 £4.95 CAN$7.99 04

11 Dopamine hit An AI learning technique is used by our brains too

KA

TE

RY

NA

KO

N/S

CIE

NC

E^ P

HO

TO

LIB

RA

RY

News

34 Features

“ For millennia, we’ve put

psychiatric conditions in

separate corners, but maybe

that’s not how it works”

On the

cover

15 Moon garden

Inside story of China’s

lunar farm

38 Over the horizon

How Stone Age travellers

reached Australia

42 Asteroid incoming

The people with a plan

to prevent an apocalypse

Vol 245 No 3266

Cover image: Angela Southern

34 Many conditions,

one cause?

A radical new theory of

mental illness offers fresh

hope for treatment

24 The great nutrient

collapse

Is our food really getting

less nutritious?

23 Goop Lab science 18 A wolf club plays fetch

18 Living concrete 9  CRISPR chicken 14 Mystery drones

This week’s issue

News

Views

Features

8 Our ghost lineage

Long-lost branch of

human history revealed

9 Restoring fertility

Cell injections found to

rejuvenate ovaries

20 Allergy food fight

Are baby-weaning guidelines

the reason food allergies have

become more common?

23 Comment

Bad science in The Goop Lab is

easy to fall for, says Clare Wilson

24 The columnist

James Wong on claims

that food is less nutritious

26 Letters

Pedestrian-friendly cities

need room to play too

28 Aperture

Making an artificial glacier

in the Himalayas

30 Culture

Why civil rights go hand

in hand with access to IT

51 Science of cooking

Make tofu for Chinese

New Year

52 Puzzles

A black hole cryptic crossword

and a land problem

53 Feedback

Spoon-bending and military

dolphins: the week in weird

54 Almost the last word

Red sky at night and shampoo vs

shower gel: readers reply

56 The Q&A

Brendan Walker on designing

thrilling experiences

34 Many conditions,

one cause?

The surprising connections

making us rethink mental health

38 Over the horizon

The epic Stone Age journey

to discover Australia

42 Asteroid incoming

A step-by-step guide to how

we would save the planet

The back pages

Instant Expert:

Human Evolution

Explore the discoveries

that are rewriting the

story of our origins

Join six expert speakers

in London on 29 February

for a one-day masterclass.

Find out more at

newscientist.com/events