dergi

If you’re SAD,
see the light!
Many people feel depressed in winter –
and now scientists think they know why.
In the 1970s,an American engineer
called Herb Kern noticed that in
spring and summer he was happy
and had a lot of energy, but every
winter he became depressed and
lazy. He thought it was because
there wasn’t much daylight in the
winter and asked some scientists to
make a ‘light box’. He put the box on
his desk and after a few days he felt
a lot better. In 1982 the scientists
gave his illness a name – Seasonal
Affective Disorder, or SAD.
In the USA about 6-20% of people have SAD and it
is common in other countries like the UK and
Sweden. People get countries like the UK and
Sweden. People get SAD in autumn and winter,
when the days are shorter and there is less daylight.
It is more common in women than in men. People
with SAD usually sleep a lot and feel tired all the
time. They also eat a lot of sweet food and feel
depressed. The answer is bright light . You can go
on holiday to a sunny country, of course!