Home' Trinidad and Tobago Guardian : April 24th 2015 Contents A28
body & soul
Guardian www.guardian.co.tt Friday, April 24, 2015
Ministry of Finance and the Economy
Inland Revenue Division
All employees are reminded that they must submit a TD1
Form with the employer to ensure the correct tax deductions.
TD1 Forms MUST be approved by the Board of Inland
Revenue (BIR) annually where the employee is claiming
any or all of the following deductions:
> Tertiary Education Expenses
> First Time Home Owner
> Contributions to Approved Deferred Annuity plans
> Tax Credits
Where the employee is Only entitled to Personal
Allowance and 70% NIS deductions, the TD1 Form is to
be submitted directly to the employer without BlR's
(bringing 24 hr online services to you)
The likelihood of being bitten by
mosquitoes could be down to genes
that control our body odour, a pre-
liminary study in Plos One suggests.
Researchers tested pairs of identical
and non-identical twins to see how
attractive they were to mosquitoes.
Identical twins were more likely to have
similar levels of attractiveness---sug-
gesting shared genetic factors were at
The "intriguing" results must now
be assessed in larger trials, experts say.
Researchers have long tried to under-
stand what drives mosquitoes to bite
certain people more than others. Recent
work shows the insects may be lured
to their victims by body odour. And
anecdotal reports suggest some relatives
are just as likely to be bitten as each
Scientists from the UK and US want-
ed to find out whether genes were
behind this phenomenon. To test their
theory they enlisted 19 non-identical
and 18 identical pairs of twins in a pilot
study. In a series of experiments each
twin placed one hand at an end of a
Y-shaped wind tunnel as air was
pumped through, carrying odour with
it. Swarms of mosquitoes were then
released and moved towards or away
from each twin s hand.
For identical twins---who share much
of their genetic material---there was an
even distribution of mosquitoes in both
sections. This suggests the insects did
not prefer the odour of one hand more
than the other. In contrast, results for
the non identical twins---who share
fewer genes---were more varied.
Researchers say their works suggests
attractiveness to mosquitoes could be
caused by inherited body odour genes.
Their next step is to uncover which
specific genes may be involved. Further
research is now under way.
Bespoke control methods
Providing an independent comment,
Dr David Weetman, lecturer at the Liv-
erpool School of Tropical Medicine,
said: "This is a novel and intriguing
finding. "It is the first time a genetic
basis has been demonstrated. "But
mosquitoes are not just attracted to
scent---things like carbon dioxide also
play a role.
"Larger studies will help assess how
relevant these findings are outside the
laboratory where other factors may be
important." Lead author Dr James
Logan, of the London School of Hygiene
and Tropical Medicine, said:
"If we understand the genetic basis
for variation between individuals it
could be possible to develop bespoke
ways to control mosquitoes better, and
develop new ways to repel them."
Mosquitoes 'lured by
body odour genes'
YOUR DAILY HEALTH
News and advice
Researchers say their works suggests attractiveness to mosquitoes could be caused by inherited body odour
Physical activity has little role in
tackling obesity---and instead public
health messages should squarely focus
on unhealthy eating, doctors say.
In an editorial in the British Journal
of Sports Medicine, three international
experts said it was time to "bust the
myth" about exercise. They said while
activity was a key part of staving off
diseases such as diabetes, heart disease
and dementia, its impact on obesity was
Instead excess sugar and carbohy-
drates were key. The experts, including
London cardiologist Dr Aseem Malhotra,
blamed the food industry for encour-
aging the belief that exercise could coun-
teract the impact of unhealthy eating.
They even likened their tactics as "chill-
ingly similar" to those of Big Tobacco
on smoking and said celebrity endorse-
ments of sugary drinks and the asso-
ciation of junk food and sport must end.
They said there was evidence that up
to 40 per cent of those within a normal
weight range will still harbour harmful
metabolic abnormalities typically asso-
ciated with obesity.
But despite this public health mes-
saging had "unhelpfully" focused on
maintaining a healthy weight through
calorie counting when it was the source
of calories that mattered most---research
has shown that diabetes increases 11-
fold for every 150 additional sugar calo-
ries consumed compared to fat calo-
And they pointed to evidence from
the Lancet global burden of disease pro-
gramme which shows that unhealthy
eating was linked to more ill health than
physical activity, alcohol and smoking
Dr Malhotra said: "An obese person
does not need to do one iota of exercise
to lose weight, they just need to eat less.
My biggest concern is that the messaging
that is coming to the public suggests
you can eat what you like as long as
"That is unscientific and wrong. You
cannot outrun a bad diet." But others
said it was risky to play down the role
of exercise. Prof Mark Baker, of the
National Institute of Health and Care
Excellence, which recommends "well-
balanced diets combined with physical
activity", said it would be "idiotic" to
rule out the importance of physical
Ian Wright, director general at Food
and Drink Federation, said: "The benefits
of physical activity aren t food industry
hype or conspiracy, as suggested. A
healthy lifestyle will include both a bal-
anced diet and exercise."
He said the industry was encouraging
a balanced diet by voluntarily providing
clear on-pack nutrition information and
offering products with extra nutrients
and less salt, sugar and fat.
"This article appears to undermine
the origins of the evidence-based gov-
ernment public health advice, which
must surely be confusing for consumers,"
Exercise 'not key to obesity fight'
Links Archive April 23rd 2015 April 25th 2015 Navigation Previous Page Next Page