knowledge want

Researchers in the US have developed a new drug that can be delivered directly into the eye via an eye dropper to shrink down and dissolve cataracts - the leading cause of blindness in humans.  While the effects have yet to be tested on humans, the team from the University of California, San Diego hopes to replicate the findings in clinical trials and offer an alternative to the only treatment that’s currently available to cataract patients - painful and often prohibitively expensive surgery.  Affecting tens of millions of people worldwide, cataracts cause the lens of the eye to become progressively cloudy, and when left untreated, can lead to total blindness. This occurs when the structure of the crystalline proteins that make up the lens in our eyes deteriorates, causing the damaged or disorganized proteins to clump and form a milky blue or brown layer. While cataracts cannot spread from one eye to the other, they can occur independently in   b...

According  to  a  new  research   ,regular  brisk  walking   is  a   more  effective   method   for  weight  loss  than   going  to  the  Gym.  A study by the London School of Economics found that those who engaged in “regular, brisk walking” for longer than half an hour had lower Body Mass Indexes (BMI) and smaller waists than those who did other exercise such as going the gym or playing football or rugby. The results were particularly true for women, people over 50 and those on low incomes. Dr Grace Lordan, who led the research said: “The results thus provide an argument for a campaign to promote walking… Given the obesity epidemic and the fact that a large proportion of people are inactive, recommending that people walk briskly more often is a cheap and easy policy option.” ...

Swiss engineers have invented a pacemaker based on an clockwork wristwatch which is powered by the motion of the heart. The prototype, which has been successfully tested in pigs, could mean that patients no longer have to undergo repeat surgery when the batteries in their device run out. The invention, presented to the European Society of Cardiology Congress in Barcelona, is based on the concept behind a self-winding wristwatch. Currently pacemakers, which are used to help the heart beat more regularly, need to be replaced on average every seven years, when batteries fail More than 40,000 people a year are fitted with pacemakers in England. The devices are used for patients with unusually fast, slow or irregular heart rhythms. The new model, stitched directly on to the heart, is based on the concept of automatic clockwork developed by Swiss watchmakers in 1777 and generates electrical current using the movement of heart muscle.  Automatic watches work b...