Light relief for SAD sufferers
It's no surprise to learn that a company from northerly
Finland has come up with a new way to treat Seasonal Affective
Disorder (SAD) that can affect up to 20% of people living above or
below 30 degrees latitude. But what is unusual about the bright
light headsets produced by the Oulu-based firm Valkee is that they
are used to shine light into sufferers' brains via their ear canals
rather than their eyes.
The human brain has photosensitive areas that react to the lack of
light, resulting in mood swings and even serious depression. Bright
desk-top or bedside lights have long been known to help SAD
sufferers, but scientists from the University of Oulu have
discovered that counter-intuitively the most effective route to
deliver light to the brain seems to be via the ear canal, where our
skulls are thinnest.
Studies are continuing, but in clinical tests an amazing 9 patients
out of 10 experienced total relief of symptoms after using Valkee
headsets for just 8-12 minutes a day for 4 weeks. Anecdotal
evidence suggests that the headsets could also ease other problems
including migraine and jet lag.
Lifeline Ventures partner Timo Ahopelto, who is also Valkee's
interim CEO, reckons that the potential global markets for headsets
are huge. "SAD affects all populations living more than 30 degrees
away from the Equator. Even in Florida 4% of the population may be
affected, and at the latitude of New York the figure rises to 20%,"
he explains.
Headsets in stylish black or white design options have been a hit
on the Finnish market this winter. "We're already seeking funding
with the aim of running a pan-European launch later this year,"
adds Ahopelto.
www.valkee.com