Foods for strong bones
No matter how old or young you
may be, taking care of your bones
is a must.
While most of us take them for granted, thinking they're the strongest and hardest body part, over time bones can deteriorate in quality. Osteoporosis, which is marked by a condition where bones become soft and crack easily, is no longer just a disease of the older generation. More and more youngsters are falling prey to this due to poor eating habits.
Milk
There is reason why your mother told you to drink your glass of milk daily. Milk is a vital source of calcium as well as vitamin D. Research suggests that other dairy products like cheese and ice-cream are also good alternatives but while they contain calcium, most do not have vitamin D. You can always opt for a nonfat variety so that you get all the health benefits.
Nuts and seeds
Don't underestimate your favourite nuts. Those like pumpkin
seeds are rich in magnesium, which help with calcium metabolism. Other nuts
like almonds and pistachios could also be consumed.
Walnuts
Walnuts are full of omega-3 fatty acid, which has numerous benefits. They also contain alphalinoleic acid, which strengthens the bones.
Carrots
These vegetables boast of alpha-carotene, beta-carotene, and betacryptoxanthin. Eat them raw in the form of salad.
Source: www.timesofindia.com
05.04.2012
Diet literally shapes our teeth
The roughness of tooth surfaces can reveal what we
have been eating, according to a new research.
Indeed, evidence from teeth can be used to determine what has been eaten by an animal providing a new way of working out the diets of wild animals that doesn't involve the unpleasant task of looking at the contents of their guts. Scientists say it is also possible to use these methods to investigate diets of extinct animals such as giant marine reptiles and dinosaurs.
Indeed, evidence from teeth can be used to determine what has been eaten by an animal providing a new way of working out the diets of wild animals that doesn't involve the unpleasant task of looking at the contents of their guts. Scientists say it is also possible to use these methods to investigate diets of extinct animals such as giant marine reptiles and dinosaurs.
Research led by the Department of Geology at the University of Leicester, reveals that there is a close match between roughness of teeth and diet, with teeth from animals that eat hard foods having rougher surfaces than those that eat soft foods.
"Run your tongue over your teeth. Some may feel rougher than others. The question we are trying to answer is can the roughness of the tips of teeth, worn by contact with food, be used to work out what an animal has been eating?" Mark Purnell, Professor of Palaeobiology at the University of Leicester, said.
"But before we can start to answer that question, we need to ask is what is roughness? This is tricky to measure. Smooth and rough surfaces are intuitively easy to distinguish, but is tree bark rougher than a road surface? Is the microscopic surface of chalk rougher than cheese? It's hard to make the comparison.
"But the question does matter. For example, as hip replacements wear, do they get rougher or smoother? If an engine cylinder is too smooth it won't retain enough oil on its surface, leading to friction and seizing, but how smooth is too smooth? In order to answer questions like this, engineers have been working on ways to measure roughness for decades.
"International standards are now being developed, based on new ways of measuring surfaces very precisely using special 3-D microscopes, and it is this approach that has been applied to the teeth in this study."
The methods provide a useful new way of investigating fish diets - for example, researching how changes in diet control the disappearance of species, or the evolution of new ones - and will be especially useful in analysis of fossils, the diets of which are hard to determine.
"To our surprise, we found that in some cases tooth roughness is a more reliable guide to diet than looking in a fish's stomach, because stomach contents tell you only what an animal was eating in the few hours before it was caught, not what it usually eats," Ole Seehausen, the team member responsible for identifying stomach contents, added.
The study has been published in the Royal Society journal Interface.
Source: www.timesofindia.com
05.04.2012
Change
the changeable, accept the unchangeable, and remove yourself from the
unacceptable
Denis Waitley
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