It's grapes that are great for your eyes - and could reduce the risk of blindness later in life

Generations of children have had to be cajoled into eating their carrots with the promise that the vegetables are good for their eyesight.

Now new research has delivered a much sweeter deal, revealing that eating grapes is good for the eyes and could reduce the risk of going blind later in life.

The fruit protects against a chemical process known as oxidative stress, which releases harmful molecules called free radicals into the retina, the study found.

'Cold turkey' best way to quit smoking, study shows

People who want to quit smoking are more likely to succeed if they go "cold turkey" by stopping abruptly, a study in Annals of Internal Medicine shows.

Volunteers who used this approach were 25% more likely to remain abstinent half a year from the date that they give up than smokers who tried to gradually wean themselves off instead.

The NHS says that picking a convenient date to quit is important, according to BBC.

Why you should NEVER enjoy green tea and kale together

Green tea is known for its many health benefits as a powerful antioxidant.

It is the beverage of choice for the health-conscious among us, complementing a diet rich in other 'superfoods', kale and spinach among them.

But, scientists have found consuming green tea with foods rich in iron can cause the beverage to lose its antioxidant powers.

Study author Dr Matam Vijay-Kumar, said: 'If you drink green tea after an iron-rich meal, the main component in the tea will bind to the iron.

'When that occurs, the green tea loses its potential as an antioxidant.

'Stunning' operation regenerates eye's lens

A pioneering procedure to regenerate the eye has successfully treated children with cataracts in China.

More than half of all cases of blindness are caused by cataracts - the clouding of the eye's lens, according to BBC.

An implanted lens is normally needed to restore sight, but the operation described in Nature activated stem cells in the eye to grow a new one.

Experts describe the breakthrough as one of the finest achievements in regenerative medicine.

Cancer cells eat their neighbors' 'words'

Cancer cells are well-known as voracious energy consumers, but even veteran cancer-metabolism researcher Deepak Nagrath was surprised by their latest exploit: Experiments in his lab show that some cancer cells get 30-60 percent of their fuel from eating their neighbors' "words."

"Our original hypothesis was that cancer cells were modifying their metabolism based on communications they were receiving from cells in the micro environment near the tumor," said Nagrath, assistant professor of chemical and biomolecular engineering. "None of us expected to find that they were converting the signals directly into energy."